Dictionary.com
Thesaurus.com
Showing results for conditioner. Search instead for Foundationer.
Synonyms

conditioner

American  
[kuhn-dish-uh-ner] / kənˈdɪʃ ə nər /

noun

  1. a person or thing that conditions.

  2. something added to a substance to increase its usability, as a water softener.

  3. a cream or liquid preparation applied to the hair or skin, especially for its emollient qualities.

  4. a trainer of athletes.

  5. an air conditioner.

  6. Textiles. a person who conditions fibers or fabrics.

Etymology

Origin of conditioner

First recorded in 1590–1600; condition + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Other fuel-saving measures, such as setting air conditioner temperatures in public offices at a higher than usual 26°C, were announced by Thailand's energy minister on Tuesday.

From BBC • Mar. 12, 2026

Instead, it may respond unevenly, as if the thermostat were not positioned close to the air conditioner.

From Science Daily • Dec. 21, 2025

Recent notables include the redesigned Palisade—styling by Gillette—and the Lexus TX500, with a face like the last glimpse of an old air conditioner disappearing into the crusher.

From The Wall Street Journal • Dec. 4, 2025

Standing near the building, he said it sounded like a loud air conditioner, running 24/7.

From Barron's • Oct. 18, 2025

The air conditioner in the window stopped working months ago, and the smoker heats up the whole building.

From "The Hate U Give" by Angie Thomas

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.