Meaning of “bust” - Learner’s Dictionary

bust

noun [ C ] uk us /bʌst/
BREASTS

a woman's breasts, or their size in relation to clothing:

a 36-inch bust
MODEL

a model of someone's head and shoulders:

a bronze bust of Mozart
a drug bust

an occasion when the police catch people selling or using illegal drugs:

Officers arrested two men in a major drug bust last night.

(Definition of “bust noun” from the Cambridge Learner’s Dictionary © Cambridge University Press)