biggest

biggest — adjective

1. the superlative form of 'big'; larger in physical size — in height, width, lengt

1.adjectiveA1
Definition

the superlative form of 'big'; larger in physical size — in height, width, length, or overall dimensions — than any other person or thing in a particular group that contains at least three members.

Example

The biggest building in Mumbai is the Imperial Towers, with over sixty floors.

superlative + 'in' + location/group

Ezra picked the biggest slice of watermelon on the platter.

possessive determiner + biggest + noun

Common collocations
  • biggest building
  • biggest room
  • biggest city
  • biggest animal
  • biggest piece
  • biggest of the group
Synonyms
  • largest

    more formal register than 'biggest'; preferred in academic or technical writing

  • greatest

    overlaps in physical size but more commonly used for degree or importance

Antonyms
  • smallest

    direct opposite in physical dimensions

  • tiniest

    more informal than 'smallest'; emphasises very small size

Grammar Patterns

the biggest + noun (phrase)

possessive determiner + biggest + noun

Usage Note

Use this sense when comparing physical dimensions of objects, buildings, animals, or people. The group being compared must contain three or more items — for only two items, use 'bigger' (comparative) instead, not 'biggest' (superlative).

Common Mistakes

This is the biggest of the two rooms.
This is the bigger of the two rooms.
Use 'bigger' (comparative) for two things; 'biggest' (superlative) is for three or more.

2. the superlative form of 'big'; greater in importance, seriousness, impact, or in

2.adjectiveA2
Definition

the superlative form of 'big'; greater in importance, seriousness, impact, or influence than any other member of a group of three or more — for example, the biggest problem facing a company, or the biggest moment in a sporting career.

Example

Climate change is the biggest challenge facing coastal cities today.

the biggest + abstract noun (challenge/issue/problem)

Signing that contract was the biggest decision of Ilan's career so far.

Common collocations
  • biggest challenge
  • biggest problem
  • biggest mistake
  • biggest decision
  • biggest fear
  • biggest regret
  • biggest success
  • biggest worry
Synonyms
  • greatest

    more formal; strongly preferred for abstract degree and importance

  • foremost

    formal; emphasises leading or primary position

  • supreme

    formal register; suggests the highest possible level

Antonyms
  • slightest

    direct opposite when talking about degree or seriousness

  • least

    opposite in terms of importance or impact

Grammar Patterns

the biggest + abstract noun

possessive determiner + biggest + noun

Usage Note

This sense refers to abstract qualities — importance, seriousness, or emotional weight — not physical size. Frequently paired with nouns such as 'challenge', 'problem', 'mistake', 'regret', 'fear', 'decision', 'moment', 'hit', or 'success'.

Common Mistakes

This is the biggest mistake I ever did.
This is the biggest mistake I have ever made.
Use 'have ever made' (present perfect) rather than 'ever did' with superlatives in this pattern.

3. the superlative form of 'big'; larger in amount, number, or quantity than any ot

3.adjectiveA2
Definition

the superlative form of 'big'; larger in amount, number, or quantity than any other member of a group of three or more — for example, the biggest share of a budget, or the biggest audience a musician has ever played to.

Example

Ezra's department received the biggest share of this year's research funding.

the biggest + quantity noun (share/portion/amount)

The charity concert attracted the biggest crowd the stadium had ever seen.

Common collocations
  • biggest share
  • biggest portion
  • biggest slice
  • biggest crowd
  • biggest audience
  • biggest number
  • biggest amount
  • biggest budget
Synonyms
  • largest

    more formal register; commonly used for amounts and quantities in business English

  • maximum

    refers to the upper limit rather than a comparison within a group

Antonyms
  • smallest

    direct opposite in terms of amount or quantity

  • minimum

    refers to the lower limit rather than comparison

Grammar Patterns

the biggest + quantity noun

possessive determiner + biggest + noun

Usage Note

Distinguish from Sense 1: Sense 1 is about physical dimensions (a biggest building), while this sense is about countable or measurable quantity (a biggest share, a biggest population). Frequently collocates with nouns related to money, data, people, or time.

Common Mistakes

He got the biggest of the two pieces of cake.
He got the bigger of the two pieces of cake.
Even when talking about amount, superlative 'biggest' requires three or more items to compare.

Word family

Synonym discussion

Sense: adjective/1

All three words describe the superlative degree of size or importance, but they differ in register and typical context. 'Biggest' is the most common and informal — it appears freely in everyday speech and writing ('the biggest slice', 'the biggest problem'). 'Largest' is slightly more formal and is strongly preferred for measured, quantifiable dimensions ('the largest population', 'the largest dataset'). 'Greatest' is the most formal of the three and tends to be reserved for abstract degree or emotional weight ('the greatest achievement', 'the greatest honour'). In physical-size contexts, 'biggest' and 'largest' overlap significantly, but 'largest' carries a more objective, data-focused tone: a real estate agent would say 'the largest apartment by square footage' but a child would say 'the biggest cookie on the plate'. For abstract senses, 'greatest' is the standard choice in formal writing, while 'biggest' dominates casual conversation.

biggest ↗largestgreatest

Common collocations

Adverbs

  • by far the biggest
  • easily the biggest
  • arguably the biggest

Phrases

  • the biggest ever
  • the biggest yet
  • the biggest of all
  • the biggest in the world

Prepositions

  • biggest in
  • biggest of
  • biggest among

Etymology

Old NorseMiddle EnglishEnglish

'Biggest' is the superlative form of 'big', formed by adding the superlative suffix '-est' to the adjective stem 'big'. The word 'big' itself dates back to the 13th century, originally meaning 'powerful, strong' in Scandinavian dialects (cf. Old Norse 'byggva' meaning 'to build, to dwell'), and shifted to meaning 'large in size' by the 16th century. The superlative form 'biggest' follows the regular Germanic adjective inflection pattern (big → bigger → biggest) and has been in continuous use since Middle English.