throughout

throughout — preposition

1. covering all areas or sections of a place or region, with no part left out; in e

1.prepositionB1
Definition

covering all areas or sections of a place or region, with no part left out; in every single part of a location

Example

Gita found the same brand of tea for sale throughout the small town.

throughout + noun phrase (place)

The new safety rules were introduced throughout all company branches last month.

Common collocations
  • spread throughout
  • found throughout
  • scattered throughout
  • available throughout
Synonyms
  • all over

    more informal and slightly less precise about completeness; 'throughout the country' vs 'all over the country'

  • across

    suggests distribution from one side to another rather than coverage of every part

  • everywhere in

    more conversational; 'everywhere in the house' instead of 'throughout the house'

Antonyms
  • nowhere in

    used for the opposite of spatial coverage

Grammar Patterns

throughout + noun phrase referring to a place or region

Usage Note

Frequently used with singular collective nouns for areas: 'throughout the country', 'throughout the building'. Unlike 'across', which can suggest movement from one side to another, 'throughout' stresses coverage of every part without exception.

Common Mistakes

I walked throughout the park to reach the other side.
I walked through the park to reach the other side.
'throughout' means 'in every part of', not 'from one side to the other of'; use 'through' for crossing movements.
The news spread throughout all of Asia.
The news spread throughout Asia.
'throughout' already implies 'all parts'; adding 'all of' is redundant with singular collective areas.

2. from the beginning to the end of a particular period of time or event, without i

2.prepositionB1
Definition

from the beginning to the end of a particular period of time or event, without interruption; during the whole of a time span

Example

Sumin stayed awake throughout the long flight from Seoul to London.

throughout + noun phrase (time period)

The community library is open to visitors throughout the year.

Common collocations
  • throughout the day
  • throughout history
  • throughout the year
  • throughout the process
  • throughout the period
Synonyms
  • during

    broader — can refer to any point within a period, not the whole duration

  • for the whole of

    more explicit about completeness; slightly formal

  • all through

    more conversational; 'all through the night'

Antonyms

Grammar Patterns

throughout + noun phrase referring to a period of time

Usage Note

Distinguish from 'during', which can refer to a single point or short moment inside a period ('during the meeting, he coughed'). 'Throughout' means the action or state applies to the whole period, from start to finish. The object is usually a time noun: 'throughout history', 'throughout the summer', 'throughout the 1990s'.

Common Mistakes

He called me at 2 pm throughout the afternoon.
He called me at 2 pm during the afternoon.
'throughout' implies the whole period; use 'during' for a single point in time.
It rained throughout yesterday.
It rained all day yesterday.
for a single day, 'all day' is more natural than 'throughout yesterday'.

throughout — adverb

Word family

Synonym discussion

Sense: preposition/1

All four can describe wide distribution within a place, but they differ in precision and formality. 'Throughout' stresses complete coverage — no area is excluded — and is the most formal of the group. 'All over' is more conversational and less precise; 'spilled coffee all over the table' does not necessarily mean every square centimetre. 'Across' implies movement or distribution from one side to another; 'across the country' suggests a path or spread rather than uniform presence. 'Everywhere in' is fully explicit but wordier; it reads naturally in speech but feels bulky in writing. For formal or written descriptions where completeness matters — policies, renovations, natural phenomena — 'throughout' is the strongest choice. Compare: 'The virus spread across the country' (movement from one area to another) vs 'The virus was present throughout the country' (found in all parts).

throughout ↗all overacross ↗everywhere in

Common collocations

Nouns

  • the country
  • the world
  • the building
  • the year
  • history
  • the day
  • the process

Adverbs

  • widely throughout
  • uniformly throughout

Phrases

  • throughout the entire ...
  • throughout much of ...

Etymology

Old EnglishMiddle EnglishEnglish

The word 'throughout' comes from Old English 'þurh ūt', a combination of 'þurh' (through) and 'ūt' (out). The two words were used together as a phrase meaning 'through and out', later merging into a single compound by the Middle English period. Over time, the meaning shifted from the idea of passing completely through something to covering every part of a space or the whole duration of a time period.