bowline vs bowline knot

bowline and bowline knot both are nouns.

Word	Noun	Adjective	Verb	Adverb
bowline	Yes	No	No	No
bowline knot	Yes	No	No	No

As nouns, bowline and bowline knot are synonyms defined as:

bowline (noun)	bowline knot (noun)
a loop knot that neither slips nor jams	a loop knot that neither slips nor jams