beetroot vs beet

beetroot and beet both are nouns.

Word	Noun	Adjective	Verb	Adverb
beetroot	Yes	No	No	No
beet	Yes	No	No	No

As nouns, beetroot and beet are synonyms defined as:

As nouns, beet is a hypernym of beetroot; that is, beet is a word with a broader meaning than beetroot:

beetroot: beet having a massively swollen red root; widely grown for human consumption
beet: biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop

Other hypernyms of beetroot include Beta vulgaris, common beet.

beetroot (noun)	beet (noun)
round red root vegetable	round red root vegetable
beet having a massively swollen red root; widely grown for human consumption	biennial Eurasian plant usually having a swollen edible root; widely cultivated as a food crop