English Reference

Word

spoil

US/ˈspɔɪɫ/

UK/spˈɔɪl/

Irregular verb

Forms

Infinitive

spoil

Past

spoiled / spoilt

Past participle

spoiled / spoilt

Definitions

01to ruin or damage

B1 · Intermediate

v. to ruin something or make it less enjoyable.

v. to impair the quality or value of something; to render something undesirable or unusable.

“The sudden rain shower started to spoil our picnic in the park.”

“The construction of the high-rise apartment block threatened to spoil the historic character of the waterfront district.”

Synonyms

Antonyms

02to overindulge someone

B2 · Upper Intermediate

v. to give someone, especially a child, everything they want in a way that harms their character.

v. to harm the character of a person, typically a child, by excessive indulgence or lack of discipline.

“The grandparents tend to spoil the children with too many sweets and toys.”

“Psychologists argue that parents who spoil their children by shielding them from every disappointment may hinder their emotional development.”

Synonyms

03food going bad

B2 · Upper Intermediate

v. to decay or become unfit to eat.

v. to undergo a process of decay or chemical change that makes food unpalatable or unsafe.

“The milk will spoil if you leave it out on the counter all night.”

“Without proper refrigeration, the entire shipment of fresh produce began to spoil within forty-eight hours of arrival.”

Synonyms

Antonyms

04to reveal a plot

B2 · Upper Intermediate Informal

v. to tell someone the ending of a movie or book before they have seen it.

v. to prematurely disclose significant plot points or the conclusion of a narrative, thereby diminishing the experience for others.

“Please don't spoil the movie for me; I haven't seen the ending yet.”

“Social media users were warned not to spoil the series finale for those living in different time zones.”

Synonyms

05aviation

C2 · Proficiency Science Technical

v. to reduce the lift of an airplane wing using a special part called a spoiler.

v. to intentionally reduce the lift generated by a wing by deflecting air upwards, typically during descent or landing.

“The pilot used the flaps to spoil the lift and slow the plane down.”

“By deploying the flight spoilers, the pilot was able to increase the rate of descent without significantly increasing the aircraft's airspeed.”

06eager for something

C1 · Advanced Informal

v. to be very eager or impatient for something to happen.

v. to be extremely eager or impatient, typically used in the progressive form 'spoiling for'.

“After weeks of training, the young boxer was spoiling for a fight.”

“The opposition party had been spoiling for a debate on the new tax laws for several months.”

Usage

Usually appears in the phrase 'spoiling for a fight' or 'spoiling for a chance'.

Synonyms

eagerdying for

07stolen goods

C1 · Advanced Plural noun Literary · Formal

n. goods or money taken by a winner after a war or a crime.

n. goods, property, or territory seized by a victor in a conflict or through illegal means.

“The soldiers divided the spoils of war among themselves after the battle.”

“The victors claimed the mineral rights of the occupied territory as part of the spoils of the campaign.”

Usage

Often used in the plural form 'spoils'.

Synonyms

08excavated waste

C2 · Proficiency Uncountable noun Science Technical

n. the earth and rocks that are dug up during building or mining.

n. waste material, such as earth or rock, produced during excavation, mining, or dredging operations.

“The construction crew moved the spoil to a different part of the site.”

“Environmental regulations required the mining company to contain the spoil in a way that prevented heavy metals from leaching into the groundwater.”

Synonyms

Collocations

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

Verb

01. completely spoil the fun

“The sudden rainstorm completely spoiled the fun of our outdoor picnic.”

adv + verb + noun

02. spoil the children with gifts

“The grandparents tend to spoil the children with expensive gifts every Christmas.”

verb + noun + prep + noun

03. spoil the surprise

“Please don't tell her about the party yet; I don't want to spoil the surprise.”

verb + noun

04. spoil your appetite

“Don't eat those cookies now, or you will spoil your appetite for dinner.”

verb + possessive + noun

Noun

05. spoil heap

“The landscape was dominated by a massive spoil heap from the nearby coal mine.”

noun + noun

06. spoils of war

“The victorious army returned home carrying the gold and jewels they took as spoils of war.”

noun + of + noun

Adverb

07. quickly spoil in the heat

“Fresh milk will quickly spoil in the heat if it is not kept in the refrigerator.”

verb + adv + prep + noun

Real-World Examples

“Salt adds flavor and helps slow the growth of microorganisms that would spoil the meat.”
The Conversation 17 Aug 2026
“He said he had been serving the area for more than 20 years without a complaint and was determined "not to let one individual spoil it for everybody else".”
BBC News 14 Aug 2026

Etymology

From Middle English spoilen, spuylen, borrowed from Old French espoillier, espollier, espuler, from Latin spoliāre (“pillage, ruin, spoil”).

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

Word family

VERB

spoil(B2)

Idioms

Domain

Aviation

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
Frequent
Level
B2 · Upper IntermediateOxford
Updated

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English Reference