safebreaker vs cracksman

safebreaker and cracksman both are nouns.

Word	Noun	Adjective	Verb	Adverb
safebreaker	Yes	No	No	No
cracksman	Yes	No	No	No

As nouns, safebreaker and cracksman are synonyms defined as:

safebreaker and cracksman: a thief who breaks open safes to steal valuable contents

Other synonyms of safebreaker include safecracker.

safebreaker (noun)	cracksman (noun)
a thief who breaks open safes to steal valuable contents	a thief who breaks open safes to steal valuable contents