IPA: //ˌæn.tiˈtɑːr.nɪʃ//
KK: /ˈæntiˌtɑrnɪʃ/
Describing a substance or product that stops metals from losing their shine or color over time.
The jeweler used an antitarnish coating on the silver necklace to keep it looking new.
Antitarnish is formed from "anti-" (meaning against) and "tarnish" (from Old French *ternir*, meaning to make dull or lose luster). The word describes a substance that works against the dulling or loss of luster of a surface.
Think of 'anti-' meaning against, and 'tarnish' meaning to lose shine. This helps you remember that antitarnish is something that prevents surfaces from losing their shine.
No commonly confused words.