running noose vs slip noose

running noose and slip noose both are nouns.

Word	Noun	Adjective	Verb	Adverb
running noose	Yes	No	No	No
slip noose	Yes	No	No	No

As nouns, running noose and slip noose are synonyms defined as:

running noose and slip noose: a loop formed in a cord or rope by means of a slipknot; it binds tighter as the cord or rope is pulled

Other synonyms of running noose include noose.

running noose (noun)	slip noose (noun)
a loop formed in a cord or rope by means of a slipknot; it binds tighter as the cord or rope is pulled	a loop formed in a cord or rope by means of a slipknot; it binds tighter as the cord or rope is pulled