projecting vs protruding

projecting and protruding both are adjectives.

Word	Noun	Adjective	Verb	Adverb
projecting	No	Yes	No	No
protruding	No	Yes	No	No

As adjectives, projecting and protruding are synonyms defined as:

projecting and protruding: extending out above or beyond a surface or boundary

Other synonyms of projecting include jutting, projected, relieved, sticking, sticking out.

projecting (adjective)	protruding (adjective)
extending out above or beyond a surface or boundary	extending out above or beyond a surface or boundary