what

what — adjective

1. used before a noun phrase in exclamations to express strong feelings — such as s

1.adjectiveB1
Definition

used before a noun phrase in exclamations to express strong feelings — such as surprise, admiration, disappointment, or shock — about how remarkable, impressive, or terrible something is

Example

What a beautiful day it is for a walk in the park!

exclamatory: 'what a/an + (adj) + noun' structure

What a mess the children made in the kitchen with all the flour!

Common collocations
  • what a
  • what an
  • what + adjective + noun

Grammar Patterns

what + a/an + (adjective) + noun (exclamation)

Usage Note

This sense always takes an exclamation mark in writing. When the noun is singular and countable, 'what a' or 'what an' is used before the noun phrase.

Common Mistakes

How a beautiful day it is!
What a beautiful day it is!
'how' cannot be used before a noun in this exclamatory pattern.

2. all of a certain thing that someone has or can access, especially when the quant

2.adjectiveB2
Definition

all of a certain thing that someone has or can access, especially when the quantity is small or limited

Example

What money Yuki had quickly ran out after she lost her job.

what + noun + clause: 'the … that' meaning

Christopher spent what free time he had reading novels at the library.

Common collocations
  • what little
  • what few
  • what + noun + have/remain/be left
Synonyms

Grammar Patterns

what + noun + subject + verb (meaning: the noun that)

Usage Note

The noun after 'what' in this sense is typically non-countable or plural. Adverbs like 'little' or 'few' often appear between 'what' and the noun to emphasise the limited amount.

Common Mistakes

What money do I had, I spent.' (wrong word order)
What money I had, I spent.
the subject follows the noun directly without 'do' support.

3. any of a particular type of thing that — used to refer to something without limi

3.adjectiveB2
Definition

any of a particular type of thing that — used to refer to something without limiting it in amount, number, or kind, like saying 'whatever'

Example

Please take what books you need from the shelf in my office.

what + noun = 'whatever/any … that' (no limit)

Mayumi offered what help she could give to the local food bank.

Common collocations
  • what + noun + can/want/need/choose
  • what + noun + be available
Synonyms
  • whatever

    more informal; directly interchangeable

  • any … that

    more explicit about the open-ended nature

Grammar Patterns

what + noun (open reference, meaning 'whatever/any … that')

Usage Note

Distinguish from sense 2: sense 2 ('the … that') implies a limited or specific known quantity, while sense 3 ('whatever') is open-ended — the amount or choice is unrestricted. If you can replace 'what' with 'whatever', sense 3 is the correct interpretation.

Common Mistakes

I gave him what money I had, which was everything in my wallet.' (should be sense 2, 'the money that') — if the quantity is limited and specific, use sense 2.
Use sense 3 when the meaning is 'any … that, without limit': 'Borrow what books you like.

4. any at all — used in rhetorical questions or negative-suggesting statements to m

4.adjectiveB2
Definition

any at all — used in rhetorical questions or negative-suggesting statements to mean 'any possible' or 'no matter which', often implying that the answer does not matter or is obvious

Example

What business is it of the neighbours what time we go to bed?

rhetorical: 'what + noun' meaning 'any at all'

What reason does the landlord have to enter the building after midnight?

Common collocations
  • what business
  • what reason
  • what difference
  • what right
  • what evidence
  • what use
  • what point
Synonyms
  • any

    more direct; 'what' carries a stronger rhetorical tone

Grammar Patterns

what + noun (rhetorical question, meaning 'any at all')

Usage Note

This sense is almost always used in rhetorical questions where the speaker suggests that there is no good answer. The noun is usually abstract (business, reason, difference, right, evidence, use, point). Not used in ordinary information-seeking questions.

Common Mistakes

What book do you want to read?' (ordinary question, not this sense).
What good does it do to worry?' (rhetorical, meaning 'any good at all').

what — adverb

what — determiner

what — predeterminer

what — pronoun / determiner

what — pronoun

Word family

Synonym discussion

Sense: pronoun, determiner/1

What 和 which 都是詢問資訊的代詞,但 which 用於選項有限或已知的情況(例如 Which colour do you prefer, red or blue?),而 what 用於完全開放的詢問(例如 What colour do you like?)。Whatever 是 what 的延伸,表示「無論什麼」,用於強調不限選擇(例如 Take whatever you want)。Who 僅用於人,而 what 可用於事物、情況或想法。What kind of / what sort of 則用於詢問類型或類別(例如 What kind of music do you listen to?),比單用 what 更具體。在台灣學習者的常見混淆中,最需要注意的是 what 與 which 的選擇:如果心裡有明確的選項清單,應使用 which;如果完全不知道答案的範圍,則使用 what。

Common collocations

Nouns

  • what time
  • what kind
  • what sort
  • what type
  • what reason
  • what difference
  • what good
  • what matter

Adverbs

  • so what
  • what then
  • what exactly
  • what on earth
  • what in the world
  • what about

Phrases

  • what if
  • what about
  • what with
  • so what
  • what's more
  • what's what
  • what have you
  • guess what

Prepositions

  • what for
  • what with
  • what of
  • what about

Etymology

Proto-Indo-EuropeanProto-GermanicOld EnglishMiddle EnglishEnglish

What 來自古英語 hwæt(意為「什麼」),可追溯至原始日耳曼語 *hwat。它與拉丁語 quid、希臘語 ti(τί)、梵語 kím(किम्)等同源,皆來自原始印歐語疑問詞根 *kʷo-/*kʷi-。現代英語中 what 的用法從古英語時期就已存在,包括疑問詞、感嘆詞及關係詞等功能。