old

old — adjective

1. having lived for many years, or having been around for many years; the opposite

1.adjectiveA1
Definition

having lived for many years, or having been around for many years; the opposite of young or new.

Example

Roya's grandmother is ninety-two and still drives her old red car to the market.

modifying both a person and an object

The wooden bridge is too old to carry trucks across the river.

predicative use after 'be'

Common collocations
  • very old
  • really old
  • an old man
  • an old woman
  • old age
Synonyms
  • elderly

    polite term used only for people, suggesting older than middle-aged

  • aged

    formal; often used in writing about very old people or things

  • ancient

    much stronger; suggests extremely old, often historical

Antonyms
  • young

    for people and animals

  • new

    for objects

Usage Note

Covers both people and things. For people, 'older' is often softer and more polite than 'old'; many speakers say 'an older woman' instead of 'an old woman' to avoid sounding rude.

Common Mistakes

My father is old 60 years.
My father is 60 years old.
for stating an exact age, the number comes before 'years old' (see sense 3).
She is more old than her brother.
She is older than her brother.
use the comparative form 'older', not 'more old'.

2. not right for someone because the thing was made for people of a higher age grou

2.adjective
Definition

not right for someone because the thing was made for people of a higher age group.

Example

That cartoon is too old for my four-year-old nephew; it has scary monsters.

pattern: too old for + person

Meera said the novel felt a bit old for her ten-year-old daughter.

softened with 'a bit'

Common collocations
  • too old for
  • a bit old for
  • a little old for
Synonyms
  • advanced

    for material above someone's level

  • grown-up

    more informal; suggests adult content

Antonyms
  • young

    as in 'too young for' the same audience

Usage Note

Almost always paired with 'too' or 'a bit', and with 'for + person'. Distinguish from sense 1: here the thing itself is not aged — it is simply pitched at an older audience.

Common Mistakes

This book is old for him.
This book is too old for him.
without 'too' or 'a bit', readers will assume sense 1 (the book is aged).

3. of a stated age, or used in questions to ask the age of a person, animal, or thi

3.adjectiveA1
Definition

of a stated age, or used in questions to ask the age of a person, animal, or thing.

Example

Caleb, how old is the brown puppy your sister just adopted?

question pattern: How old + be?

Tuan turned six years old last Tuesday and blew out every candle himself.

number + years old

Common collocations
  • years old
  • months old
  • weeks old
  • How old
  • a [number]-year-old
Synonyms
  • aged

    more formal; 'a man aged sixty'

  • of age

    fixed phrase, often legal: 'when she came of age'

Grammar Patterns

number + years old

How old + be + subject?

Usage Note

The pattern is fixed: 'number + years/months/weeks + old' (never 'old + years'). For babies, use 'months' or 'weeks' old. Also used in compounds before nouns: 'a six-year-old boy' (with hyphens, no plural 's' on year).

Common Mistakes

I am 25 years olds.
I am 25 years old.
'old' never takes a plural 's'.
She is a 8-years-old girl.
She is an 8-year-old girl.
in the compound form, drop the 's' on 'year'.

4. belonging to your own past — something you once used, owned, lived in, or had a

4.adjectiveA2
Definition

belonging to your own past — something you once used, owned, lived in, or had a role in, and now no longer do, such as a former school, job, address, or pair of shoes you have replaced.

Example

Mauricio still keeps an old letter from his first piano teacher in his desk drawer.

before noun: 'old letter'

Anya bumped into an old classmate from primary school at the supermarket.

former relationship

Common collocations
  • old friend (from school)
  • old job
  • old school
  • old days
  • old times
Synonyms
  • former

    more formal; clearer when 'old' is ambiguous

  • previous

    neutral; emphasises order rather than age

  • ex-

    prefix for past relationships: 'ex-boss', 'ex-wife'

Antonyms
  • current

    for present-time roles or items

  • new

    for the replacement

Usage Note

Subject is a person whose past the noun belonged to — typical objects are roles ('old boss', 'old teacher'), places ('old flat', 'old neighbourhood'), and personal possessions ('old jeans', 'old phone'). The marker for this sense is a possessive determiner ('my old', 'her old', 'our old') signalling that the speaker has since moved on from that thing.

Common Mistakes

The flat is old; we moved last year.' (meaning previous)
Our old flat is in the city centre; we moved last year.
to mean 'former', put 'old' before the noun with a possessive.

5. used with the name of a language to mean its earliest recorded form, spoken many

5.adjective
Definition

used with the name of a language to mean its earliest recorded form, spoken many centuries ago.

Example

Zuri is studying Old English so she can read the original poem 'Beowulf'.

Old + language name (capitalised)

The professor read a passage in Old Norse to the class.

Common collocations
  • Old English
  • Old Norse
  • Old French
  • Old High German
Synonyms
  • Ancient

    used with some languages: 'Ancient Greek' rather than 'Old Greek'

Antonyms
  • Modern

    as in 'Modern English', 'Modern Greek'

Usage Note

Used as a fixed prefix to a language name and almost always written with a capital O: Old English, Old Norse, Old French. Refers to a historical stage roughly before AD 1200, depending on the language. Distinguish from sense 4: an 'old book' is just a book of any considerable age; an 'Old English' text is from a specific historical period.

Common Mistakes

I have a very old English book from 1900.
I have a very old book in English from 1900.
'Old English' refers to a medieval language, not just an aged book.

6. describing a person or place you have known well over many years, usually with w

6.adjectiveA2
Definition

describing a person or place you have known well over many years, usually with warm or affectionate feelings.

Example

Adina met an old friend from university for lunch in the same café they used to visit.

old friend collocation

Walking through her old neighbourhood, Élise recognised every shop and tree.

old + place noun

Common collocations
  • an old friend
  • an old colleague
  • an old favourite
  • an old haunt
  • old neighbourhood
Synonyms
  • long-standing

    more formal; works for friendships, agreements, traditions

  • lifelong

    stronger; lasting an entire life

  • longtime

    common in American English; written as one word

Antonyms
  • new

    as in 'a new friend' — recently met

Usage Note

Always used directly before the noun. The age of the person is irrelevant — an 'old friend' can be twenty years old, as long as the friendship itself is long. To stress age instead, say 'an elderly friend' or 'a friend who is getting old'.

Common Mistakes

My old friend is only 22, so people get confused.
My old friend is only 22
we've known each other since kindergarten.' — explain the long friendship to avoid confusion with sense 1.

7. placed before someone's name, or before a word like 'man' or 'chap', as a way of

7.adjective
Definition

placed before someone's name, or before a word like 'man' or 'chap', as a way of expressing friendly feelings or, occasionally, mild irritation toward them.

Example

Good old Liam — he always remembers everyone's birthday.

good old + name (warm)

Poor old Caleb missed the bus again and walked all the way home.

poor old + name (sympathetic)

Common collocations
  • good old
  • poor old
  • silly old
  • old chap
  • old boy
Synonyms
  • dear

    warmer, more old-fashioned: 'dear old Aunt May'

Usage Note

Highly informal and emotional, not literal — the person can be young. Almost always inside fixed frames: 'good old X', 'poor old X', 'silly old X', 'old chap', 'old boy'. 'Old chap' and 'old boy' are mainly British and now sound dated; safer for learners to recognise than to use.

Common Mistakes

Hello, old Liam, how are you?
Hello, Liam, how are you?' OR 'Good old Liam, always smiling.
bare 'old + name' as a greeting sounds odd; use a fixed frame like 'good old' or 'poor old'.
Idioms

Used to refer to any item of a particular type when the specific one does not matter.

Just grab any old book from the shelf to read.

Can I use any old cup, or do you want a specific one?

In a careless or disorganized manner.

He threw his clothes on the floor any old how.

The papers were scattered any old how across the desk.

Extremely old; ancient.

That legend is as old as the hills.

My grandmother's recipe is as old as the hills.

To behave in the same bad way as before.

Tom is up to his old tricks again, hiding his homework.

She was up to her old tricks, spreading rumors about coworkers.

A person who is very similar to their parent in appearance or behavior.

Young Mia is a chip off the old block, just like her mother.

He's a chip off the old block; he plays guitar like his dad.

Done because it reminds you of happy times in the past.

We met for coffee for old times' sake.

Let's sing that song for old times' sake.

To dismiss someone from a job or end a relationship with them.

The company gave him the old heave-ho after the scandal.

She gave her boyfriend the heave-ho last week.

An earlier period in life or history seen as better or worse than the present.

Grandpa often talks about the good old days.

Those were the bad old days of strict rationing.

A very old age, often used with a number.

She learned to swim at the grand old age of 80.

He retired at the grand old age of 75.

A respected man who has been in a profession for a long time.

He is the grand old man of British theatre.

Dr. Smith, the grand old man of physics, gave a lecture.

To enjoy oneself very much.

The kids had a high old time at the amusement park.

We had a high old time dancing all night.

Using older or more traditional units of measurement.

The distance is 10 kilometers, or about 6 miles in old money.

It weighs 500 grams, which is just over a pound in old money.

Money earned very easily with little effort.

Babysitting for an hour was money for old rope.

That job is money for jam; you just sit and watch.

An older person acting foolishly is worse than a younger one because they should know better.

He fell for the scam again; there's no fool like an old fool.

She invested in that risky scheme—no fool like an old fool.

of old

idiom

In or since past times.

In days of old, knights rode horses.

We know him of old as a reliable friend.

A friendly way for older men of a certain social class to address another man.

Cheer up, old boy, things will get better.

Hello, old chap, how are you today?

Much older than someone, especially suggesting a romantic relationship is inappropriate.

He's dating a woman young enough to be his daughter.

She's old enough to be his mother; it's weird.

Old enough to behave more sensibly than one actually did.

He's 15 and old enough to know better than to run in the hall.

She's old enough to know better than to talk back to her teacher.

A young person who acts more sensibly than expected for their age.

At 12, she has an old head on young shoulders.

He's only 16 but has an old head on young shoulders.

What usually happens, often a negative situation.

It's the same old story: he lost his keys again.

The project failed—the same old story of poor planning.

An old belief that is now known to be untrue.

Eating carrots improves your eyesight is an old wives' tale.

Don't believe that old wives' tale about cracking your knuckles.

An old-fashioned person who prefers traditional methods.

My grandfather is one of the old school; he writes letters by hand.

She's one of the old school, believing in strict discipline.

A very old age, often used with a number.

He lived to the ripe old age of 95.

She passed away at the ripe old age of 100.

It is difficult to make people change long-held habits or methods.

My dad refuses to use a smartphone; you can't teach an old dog new tricks.

She won't change her routine—can't teach an old dog new tricks.

old — noun

Word family

Synonym discussion

Sense: adjective/1

All five words describe something or someone who has lived or existed for a long time, but they differ in tone and scope. 'Old' is the everyday word and works for both people and things, though calling a person 'old' to their face can sound blunt or rude. 'Elderly' is a polite, more formal term used only for people, and it suggests someone past middle age but not necessarily very frail. 'Aged' is more literary; we read 'an aged king' in stories or news features, and it can also be paired with a number ('a man aged sixty'). 'Ancient' is much stronger: it suggests something that has existed for centuries — ancient ruins, ancient civilisations — and used jokingly about a person ('I feel ancient today!'). 'Antique' is narrower again: it refers to objects, especially furniture or jewellery, that are old enough to be valuable. Compare: 'an old chair in the kitchen' (just worn), 'an antique chair from 1820' (collectable), 'an ancient throne in the museum' (centuries old).

Common collocations

Nouns

  • old age
  • old man
  • old woman
  • old friend
  • old days
  • old times
  • old house
  • old car

Adverbs

  • very old
  • really old
  • incredibly old
  • centuries old
  • fairly old

Phrases

Prepositions

  • old for (a stage / audience)
  • old enough to (do something)
  • old at heart

Etymology

Proto-GermanicOld EnglishMiddle EnglishModern English

'Old' comes from Old English 'ald' or 'eald', meaning 'aged' or 'ancient'. This word is closely related to German 'alt' and Dutch 'oud', and all three trace back to a common Germanic root meaning 'grown up' or 'fully nourished' — originally the idea was someone who had reached full size and maturity. The same root gave English the word 'adult' (through Latin 'adultus', literally 'grown up'). Over the centuries, 'old' broadened from describing only living things that had matured to describing anything that has existed for a long time, including objects, ideas, and even languages.