extend

extend — verb

1. to make a building, road, area, or object bigger or longer by adding something t

1.verbtransitiveB1
Definition

to make a building, road, area, or object bigger or longer by adding something to it

Example

Ezra is planning to extend the kitchen so the family has more space to eat.

extend + noun phrase (physical object being enlarged)

Ayesha decided to extend her garden fence after the neighbour's dog kept getting in.

Common collocations
  • extend a building
  • extend a road
  • extend a fence
  • extend a garden
  • extend a runway
Synonyms
  • lengthen

    narrower — only about making longer, not wider or larger

  • enlarge

    more general — can mean making bigger in all dimensions, not just length

  • expand

    often implies outward growth in all directions, not a planned addition

Antonyms
  • shorten

    the opposite of making longer

  • reduce

    makes something smaller in size or scope

Grammar Patterns

extend + noun phrase (physical object)

Usage Note

Object is typically a physical structure (building, road, fence, bridge). Frequently used in the passive when describing the result rather than the agent.

Common Mistakes

I extended the deadline on my computer.' (meaning you added time).
I extended the deadline for the report.
use sense 2 for time; sense 1 is only for physical size or length.
She extended the cake batter.' (meaning she added more).
She added more milk to the cake batter.
extend is not used for food mixtures.

2. to make a period, event, or deadline carry on for longer than was originally pla

2.verbtransitive / intransitiveB1
Definition

to make a period, event, or deadline carry on for longer than was originally planned

Example

The teacher extended the deadline by three days so everyone could finish the project.

extend + noun phrase (deadline) + by + duration

Rania's visa was extended for another year while she completed her medical training.

passive: be extended for + duration

Common collocations
  • extend a deadline
  • extend a visa
  • extend a period
  • extend a contract
  • extend into (the night / October)
Synonyms
  • prolong

    more formal, often implies making something last longer than desirable

  • lengthen

    can apply to both physical length and time, but less common for time

  • stretch

    informal; 'stretch the deadline' suggests pushing to the limit

Antonyms

Grammar Patterns

extend + noun phrase (time period)

extend for + duration (intransitive)

extend into + time

Usage Note

When transitive, the object is always a unit of time (deadline, visa, period, event). The intransitive use (e.g. 'the meeting extended into the evening') describes events that continue without a direct object.

Common Mistakes

I extended the book.' (meaning I read it longer).
I extended my reading time by an hour.
the object must be the time period, not the activity.
She extended until midnight.' (without a subject that makes sense).
The party extended until midnight.
the subject should be the event, not a person.

3. to move a limb outward from your body by straightening it, such as when reaching

3.verbtransitiveB1
Definition

to move a limb outward from your body by straightening it, such as when reaching for an object or greeting someone

Example

Sari extended her arm to reach the book on the top shelf of the library.

extend + body part (arm) to reach something

The doctor asked Talia to extend her leg slowly and tell him if it hurt.

passive infinitive: asked someone to extend + body part

Common collocations
  • extend an arm
  • extend a leg
  • extend a hand
  • extend a finger
  • extend a limb
Synonyms
  • stretch out

    more informal; implies reaching to the full length

  • reach out

    focuses on the goal, not the action of straightening

  • straighten

    applies when the limb was bent before

Antonyms
  • bend

    to fold a limb

  • retract

    to pull back; rare in everyday speech

Grammar Patterns

extend + body part

extend + arm/leg/hand

Usage Note

Only use this sense for body parts that can be straightened or stretched outward. Common objects: arm, leg, hand, finger, limb. Not used for body parts that cannot be extended (nose, ear, back).

Common Mistakes

He extended his ear to hear better.
He leaned closer to hear better.
extend is only for limbs and body parts that straighten or reach outward.
She extended her back on the floor.
She stretched her back on the floor.
use 'stretch' for muscles of the torso or back.

4. to stretch across a certain distance, area, or span of time — describing how far

4.verbintransitiveB2
Definition

to stretch across a certain distance, area, or span of time — describing how far something reaches or how long it lasts, used without a direct object

Example

The Great Wall extends for thousands of kilometres across northern China.

extend + for + distance

Ada's farm extends all the way down to the river on the eastern side.

extend + all the way + prepositional phrase

Common collocations
  • extend from ... to ...
  • extend for miles
  • extend across
  • extend beyond
  • extend into
Synonyms
  • stretch

    less formal, more common in spoken English for physical distances

  • reach

    focuses on the endpoint rather than the whole span

  • continue

    neutral; can replace extend for time or distance

Antonyms
  • stop

    to end at a point

  • end

    to reach a final point

Grammar Patterns

extend + prepositional phrase (from/to/for/as far as)

extend for + distance

Usage Note

This sense is intransitive — no direct object. A prepositional phrase (for, to, from, into, beyond, as far as) must follow the verb to specify the extent. Can be used both literally (distance, area) and figuratively (scope, influence).

Common Mistakes

The road extends the valley.' (using a direct object).
The road extends across the valley.
this sense never takes a direct object; use a preposition.
His kindness extends everyone.
His kindness extends to everyone in the office.
always include the preposition 'to' when describing who or what is included.

5. to give or offer someone a particular kind of treatment, service, or opportunity

5.verbtransitiveB1
Definition

to give or offer someone a particular kind of treatment, service, or opportunity — such as an invitation, welcome, thanks, or sympathy

Example

The university extended a full scholarship offer to Imani for her climate research.

extend + offer + to + someone (formal offer)

Ayesha extended her sincere thanks to all the volunteers who helped at the shelter.

collocation: extend thanks to

Common collocations
  • extend an invitation
  • extend a welcome
  • extend thanks
  • extend sympathy
  • extend credit
  • extend an offer
Synonyms
  • offer

    neutral and more common in everyday speech

  • give

    less formal, broader meaning

  • proffer

    very formal, literary; rare in everyday use

Antonyms

Grammar Patterns

extend + noun phrase + to + someone

extend + a/n + invitation/thanks/welcome

Usage Note

This sense belongs to formal English. In everyday conversation, use 'offer', 'give', or 'say' instead. Common collocations are fixed phrases: extend an invitation, extend a welcome, extend thanks, extend sympathy, extend an apology, extend credit. The receiver is introduced with 'to'.

Common Mistakes

I extended him an invitation.' (missing 'to').
I extended an invitation to him.
the word order with direct and indirect object requires 'to'.

6. to apply to or involve a particular person, group, or situation, especially when

6.verbintransitiveB2
Definition

to apply to or involve a particular person, group, or situation, especially when including them in a rule, benefit, or condition

Example

The new safety rules extend to all employees, not just those working in the factory.

extend to + noun phrase (who is included)

The ban on smoking in the building extends to the outdoor seating areas as well.

Common collocations
  • extend to everyone
  • extend to all
  • extend to include
  • does not extend to
  • extend to cover
Synonyms
  • cover

    less formal, very common in everyday and business contexts

  • apply to

    synonymous; 'apply to' is more direct and common in spoken English

  • include

    more general; does not require a preposition

Antonyms

Grammar Patterns

extend to + noun phrase

Usage Note

Common in legal, policy, and formal contexts. The subject is typically a rule, policy, benefit, right, or quality (kindness, concern). Always followed by 'to' + noun phrase. Cannot be used with a direct object.

Common Mistakes

The rule extends everyone.' (missing preposition).
The rule extends to everyone in the building.
'extend to' always needs the preposition.
This benefit extends for new employees.' (wrong preposition).
This benefit extends to new employees.
use 'to' to indicate who is covered, not 'for'.

7. to force someone or something to use all available strength, effort, or resource

7.verbtransitiveB2
Definition

to force someone or something to use all available strength, effort, or resources, often reaching the maximum capacity

Example

The final exam extended the students far beyond what they had prepared for in class.

extend + noun phrase + beyond (pushing past normal limits)

Rania extended herself to finish the marathon despite the pain in her injured knee.

reflexive: extend oneself (push personal limits)

Common collocations
  • extend oneself
  • extend to the limit
  • extend to capacity
  • extend resources
  • extend beyond
Synonyms
  • push

    less formal, more common in everyday speech about effort

  • stretch

    informal; 'stretch resources' is a common alternative

  • strain

    implies damage or discomfort from overuse

Antonyms
  • conserve

    to use carefully, avoiding waste or strain

  • rest

    to stop using energy or capacity

Grammar Patterns

extend + reflexive pronoun

extend + noun phrase (resources/ability) + to the limit

Usage Note

Often used in the passive (resources were extended) or with a reflexive pronoun (extend oneself). Common in phrases like 'extend to the limit' and 'extend to capacity'. Less common in everyday conversation than 'push' or 'stretch'.

Common Mistakes

I extended my muscles at the gym.' (wrong sense).
I pushed my muscles to the limit at the gym.
for physical training, 'push' is more natural than 'extend'.
The project extended the team.' (unclear).
The project extended the team to their limits.
the phrase 'to the limit' clarifies the meaning.

Word family

Synonym discussion

Sense: verb/1

Extend, expand, lengthen, enlarge, and prolong all involve making something bigger or longer, but they differ in what is being changed and how. Extend is the most versatile: it covers adding physical length (extend a road), expanding area (extend a house), and prolonging time (extend a deadline). Expand focuses on outward growth in all directions — a company expands its operations, a balloon expands with air. Lengthen applies only to one dimension (length), not width or volume, so you can lengthen a dress but not a house. Enlarge is more general for size in all dimensions but is rarely used for time. Stretch suggests pulling something elastic or flexible to its limit, often with the sense of strain. Prolong is exclusively temporal and is more formal, often implying something lasts longer than desirable. For physical structures, use extend for planned additions; for elastic materials, use stretch; for time, use either extend (neutral) or prolong (formal).

expand ↗lengthen ↗enlarge ↗stretch ↗prolong ↗

Common collocations

Nouns

Adverbs

Phrases

  • extend an invitation
  • extend a welcome
  • extend thanks
  • extend credit
  • extend to the limit
  • extend beyond
  • extend from...to

Prepositions

Etymology

LatinFrenchEnglish

Extend comes from Latin 'extendere', which is made of two parts: 'ex-' meaning 'out' and 'tendere' meaning 'to stretch'. So the original idea was 'to stretch outward', which still connects all the modern meanings — whether stretching an arm, stretching a road further, or stretching time longer.