plow vs moldboard plow

plow and moldboard plow both are nouns.

Word	Noun	Adjective	Verb	Adverb
plow	Yes	No	Yes	No
moldboard plow	Yes	No	No	No

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

plow: a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing
moldboard plow: plow that has a moldboard

Other hyponyms of plow include bull tongue, mouldboard plough, ard, ard plough, scratch plough.

plow (noun)	moldboard plow (noun)
a farm tool having one or more heavy blades to break the soil and cut a furrow prior to sowing	plow that has a moldboard

plow (verb)	moldboard plow (verb)
act on verbally or in some form of artistic expression
to break and turn over earth especially with a plow
move in a way resembling that of a plow cutting into or going through the soil