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Definition of mouthwash

mouthwash

/ˈmaʊθ.wɑːʃ/
mouth · wash
Plural:mouthwashes
•
Past Simple:mouthwashed
•
Past Participle:mouthwashed
•
Present Participle:mouthwashing
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mouthwash Lexical Profile

mouthwash Game Scores & Validity

• noun

1

An antiseptic or flavored liquid solution held in the mouth and swished around to cleanse the teeth and gums, kill bacteria, and freshen breath.

Example

"The dentist recommended using a fluoride mouthwash every evening after brushing and flossing."

2

Insincere, pretentious, or meaningless talk intended to deceive or flatter.

Example

"Voters quickly dismissed the candidate's grand promises as mere political mouthwash."

Synonyms
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Antonyms
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• verb

1

To rinse or cleanse the mouth with an antiseptic or flavored liquid solution.

Example

"He quickly mouthwashed before heading out the door for his morning meeting."

Synonyms
View all synonyms for mouthwash

• Nearby Words

mouthguard
mouthiness
mouthpiece
mouthwash
mouthwatering
mouthwateringly
mouthy

Cite this Entry

Wordmom. (2026). Definition of Mouthwash. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/mouthwash
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