safety harness vs safety belt

safety harness and safety belt both are nouns.

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

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

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

Other synonyms of safety harness include life belt.

safety harness (noun)	safety belt (noun)
belt attaching you to some object as a restraint in order to prevent you from getting hurt	belt attaching you to some object as a restraint in order to prevent you from getting hurt