safety belt vs life belt

safety belt and life belt both are nouns.

Word	Noun	Adjective	Verb	Adverb
safety belt	Yes	No	No	No
life belt	Yes	No	No	No

As nouns, safety belt and life belt are synonyms defined as:

safety belt and life belt: belt attaching you to some object as a restraint in order to prevent you from getting hurt

Other synonyms of safety belt include safety harness.

safety belt (noun)	life belt (noun)
belt attaching you to some object as a restraint in order to prevent you from getting hurt	a life preserver in the form of a ring of buoyant material
	belt attaching you to some object as a restraint in order to prevent you from getting hurt