say it: BUUZ-uhm
bosom is a noun and verb meaning "the chest considered as the place where secret thoughts are kept". It carries 8 recorded senses.
the chest considered as the place where secret thoughts are kept
“his bosom was bursting with the secret”
archaism
a person's breast or chest
cloth that covers the chest or breasts
either of two soft fleshy milk-secreting glandular organs on the chest of a woman
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for bosom come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.