impinging vs meshing

impinging and meshing both are nouns.

Word	Noun	Adjective	Verb	Adverb
impinging	Yes	No	No	No
meshing	Yes	No	No	No

As nouns, meshing is a hyponym of impinging; that is, meshing is a word with a more specific, narrower meaning than impinging:

Other hyponyms of impinging include collision, hit, engagement, interlocking, mesh, flick, impact, touch, touching.

impinging (noun)	meshing (noun)
the physical coming together of two or more things	the act of interlocking or meshing
	an open fabric of string or rope or wire woven together at regular intervals
	contact by fitting together