ditch vs haw-haw

ditch and haw-haw both are nouns.

Word	Noun	Adjective	Verb	Adverb
ditch	Yes	No	Yes	No
haw-haw	Yes	No	No	No

As nouns, haw-haw is a hyponym of ditch; that is, haw-haw is a word with a more specific, narrower meaning than ditch:

ditch: a long narrow excavation in the earth
haw-haw: a ditch with one side being a retaining wall; used to divide lands without defacing the landscape

Other hyponyms of ditch include drainage ditch, irrigation ditch, ha-ha, sunk fence, trench, trench.

ditch (noun)	haw-haw (noun)
a long narrow excavation in the earth	a ditch with one side being a retaining wall; used to divide lands without defacing the landscape
any small natural waterway	a loud laugh that sounds like a horse neighing

ditch (verb)	haw-haw (verb)
crash or crash-land
cut a trench in, as for drainage
make an emergency landing on water
forsake
throw away
sever all ties with, usually unceremoniously or irresponsibly