English Reference

Word

fool

US/ˈfuɫ/

UK/fˈuːl/

Definitions

01unwise person

B1 · Intermediate Countable noun

n. a person who does not have good judgment or who acts in a silly or stupid way.

n. a person lacking in judgment or prudence; often used as a mild to moderate insult regarding someone's intelligence or behavior.

“I felt like a fool when I realized I was wearing two different shoes.”

“He was no fool in business matters, yet he consistently allowed his personal biases to cloud his professional judgment.”

Synonyms

idiotsimpletonclown

Antonyms

02historical entertainer

B2 · Upper Intermediate Countable noun Literature Archaic

n. a person in the past whose job was to tell jokes and entertain a king or queen.

n. a professional jester or entertainer at a royal or noble court, historically permitted to speak truths that others could not.

“The king's fool was the only person allowed to mock the monarch's decisions.”

“In Shakespearean drama, the fool often serves as a source of profound wisdom disguised as nonsensical riddles.”

Synonyms

03fruit dessert

C1 · Advanced Countable noun Cooking British English

n. a cold dessert made of mashed fruit mixed with cream or custard.

n. a traditional British dessert consisting of puréed fruit folded into chilled custard or whipped cream.

“We had a delicious gooseberry fool for dessert after the Sunday roast.”

“The chef prepared a rhubarb fool, balancing the tartness of the fruit with a rich, vanilla-infused double cream.”

04to trick someone

B1 · Intermediate

v. to trick someone or make them believe something that is not true.

v. to deceive or dupe someone, often by means of a clever or playful trick.

“You can't fool me with that fake spider; I know it's plastic.”

“The sophisticated phishing email managed to fool several employees into revealing their login credentials.”

Synonyms

Antonyms

05to behave sillily

B2 · Upper Intermediate Informal

v. to behave in a silly way or waste time.

v. to behave in a playful, frivolous, or idiotic manner; often used with 'around'.

“Stop fooling around and finish your homework before dinner.”

“The teenagers were caught fooling around near the edge of the pier, oblivious to the safety warnings posted nearby.”

Usage

Often used as the phrasal verb 'fool around'.

Antonyms

06silly or unwise

B2 · Upper Intermediate Informal

adj. silly, stupid, or not showing good sense.

adj. characteristic of a fool; lacking good sense or judgment.

“That was a fool idea to go hiking in the middle of a storm.”

“He wasted his inheritance on some fool scheme to find buried treasure in the desert.”

Synonyms

Antonyms

Collocations

Common phrases and expressions where native English speakers use the word “fool” in context.

Verb

01. make a fool of

“He was worried that he would make a fool of himself if he forgot his lines during the play.”

verb + noun + prep

02. play the fool

“Stop playing the fool and start taking your studies seriously.”

verb + noun

03. suffer fools

“The manager was known for being very impatient; she did not suffer fools gladly.”

verb + noun

Adjective

04. bloody fool

“He called himself a bloody fool for losing his car keys for the third time this week.”

adj + noun

05. utter fool

“I felt like an utter fool when I realized I had been wearing my shirt inside out all day.”

adj + noun

Noun

06. april fool

“She played a hilarious April fool on her brother by replacing the sugar with salt.”

noun + noun

Preposition

07. for a fool

“Don't take me for a fool; I know exactly what you are trying to do.”

prep + noun

Real-World Examples

“And so many people were in his ear saying: “Niles, you fool, you’re sticking your knife in the toaster!” DHP: Love comes when you least expect it and it takes seven years.”
The Guardian 7 Oct 2026
“Do not be fooled by the mild-mannered image: Birtwell is, and always has been, a player.”
The Guardian 28 Sept 2026
“This volcanic island is only 22km (14 miles) in diameter, but don't let size fool you.”
The Local 28 Oct 2019
“In the comments, some viewers were fooled; others were unsure.”
BBC News 4 Feb 2026

Etymology

From Middle English fole (“fool”), from Old French fol (cf. modern French fou (“mad”)) from Latin follis. Doublet of fals and follis. Displaced native Old English dwæs.

From French fouler (“to trample”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

fool(B2)

ADJECTIVE

Related words

Idioms

Domains

CookingLiterature

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.B2 FirstIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.5.5–6.5TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 4.0–4.572–94TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.785–944
Frequency
Common
Level
B2 · Upper IntermediateOxford
Updated

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English Reference