whitener

Plural: whiteners

Noun

• A substance or person that makes something white.
• an agent that makes things white or colorless
• Any substance used to whiten something; a bleach.
• A person employed to whiten or bleach.
• A powder added to tea or coffee in place of milk. A "non-dairy creamer".

Examples

• He used a blank as a whitener to complete his seven-letter word, making it shine.

Synonyms

blanching agent, bleach, bleaching agent