monocot vs angiosperm

monocot and angiosperm both are nouns.

Word	Noun	Adjective	Verb	Adverb
monocot	Yes	No	No	No
angiosperm	Yes	No	No	No

As nouns, angiosperm is a hypernym of monocot; that is, angiosperm is a word with a broader meaning than monocot:

monocot: a monocotyledonous flowering plant; the stem grows by deposits on its inside
angiosperm: plants having seeds in a closed ovary

Other hypernyms of monocot include flowering plant.

monocot (noun)	angiosperm (noun)
a monocotyledonous flowering plant; the stem grows by deposits on its inside	plants having seeds in a closed ovary