English Reference

Word

conditioner

Phoneticscon·di·tion·er, stress on the second syllable

US/kənˈdɪʃənɝ/

UK/kəndˈɪʃənɐ/

Definitions

01for hair

B1 · Intermediate Uncountable noun

n. a thick liquid you put on your hair after washing it to make it soft and easy to brush.

n. a cosmetic substance used to improve the texture and manageability of hair after shampooing. Often uncountable when referring to the substance generally.

“After using the new conditioner, my hair felt much softer and was easier to comb.”

“The stylist recommended a leave-in conditioner to protect the hair from heat damage during the blow-drying process.”

Usage

Often used as an uncountable noun when referring to the product in general, but countable when referring to a specific bottle or type.

Synonyms

hair treatmentbalm

02for clothes

B1 · Intermediate Uncountable noun British English

n. a liquid added to a washing machine to make clothes feel soft and smell nice.

n. a chemical agent added to laundry to prevent static and soften the fabric. Also known as fabric softener.

“Don't forget to add the fabric conditioner to the final rinse cycle.”

“The laundry detergent already contains a built-in conditioner, so there is no need to add extra softener to the machine.”

Usage

Commonly called 'fabric softener' in American English.

Synonyms

fabric softener

03fitness trainer

C1 · Advanced Countable noun Sports Technical

n. a person who helps athletes or animals get into top physical shape.

n. a specialist responsible for the physical preparation and fitness levels of athletes or racehorses.

“The team hired a new strength and conditioner to help the players avoid injuries.”

“The head coach worked closely with the lead conditioner to ensure the players reached peak physical form before the tournament began.”

Usage

Usually appears in the compound phrase 'strength and conditioning coach' or 'conditioner' in professional sports contexts.

Synonyms

trainerfitness coach

04general improver

C1 · Advanced Countable noun Technical

n. anything that is used to improve the quality or state of something else.

n. a substance or device used to bring something to a desired state or quality.

“We added a soil conditioner to the garden to help the plants grow better.”

“The technician installed a power conditioner to protect the sensitive laboratory equipment from fluctuations in the electrical supply.”

Synonyms

improvermodifier

Etymology

From condition + -er.

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

Word family

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.B1 PreliminaryIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.4.0–5.0TOEFL 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: 3.0–3.544–71TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.550–784
Frequency
Frequent
Level
B1 · Intermediate
Updated

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