garden vs botany

garden and botany both are nouns.

Word	Noun	Adjective	Verb	Adverb
garden	Yes	Yes	Yes	No
botany	Yes	No	No	No

As nouns, botany is a hypernym of garden; that is, botany is a word with a broader meaning than garden:

garden: the flowers or vegetables or fruits or herbs that are cultivated in a garden
botany: all the plant life in a particular region or period

Other hypernyms of garden include flora, vegetation.

garden (noun)	botany (noun)
a plot of ground where plants are cultivated	the branch of biology that studies plants
a yard or lawn adjoining a house	all the plant life in a particular region or period
the flowers or vegetables or fruits or herbs that are cultivated in a garden

garden (adjective)	botany (adjective)
the usual or familiar type

garden (verb)	botany (verb)
work in the garden