bosom friend

== English == === Alternative forms === bosomfriend, bosom-friend === Etymology === Compound of bosom +‎ friend. Compare typologically Russian напе́рсник (napérsnik), akin to Proto-Slavic *pьrsь, Russian закады́чный друг (zakadýčnyj drug), akin to кады́к (kadýk)). === Pronunciation === === Noun === bosom friend (plural bosom friends) A very close friend. ==== Synonyms ==== (very close friend): Synonyms: bosom buddy, cater-cousin, intimate, (US, slang) ace boon coon ==== Translations ====