landscape gardener vs architect

landscape gardener and architect both are nouns.

Word	Noun	Adjective	Verb	Adverb
landscape gardener	Yes	No	No	No
architect	Yes	No	No	No

As nouns, architect is a hypernym of landscape gardener; that is, architect is a word with a broader meaning than landscape gardener:

landscape gardener: someone who arranges features of the landscape or garden attractively
architect: someone who creates plans to be used in making something (such as buildings)

Other hypernyms of landscape gardener include designer.

landscape gardener (noun)	architect (noun)
someone who arranges features of the landscape or garden attractively	someone who creates plans to be used in making something (such as buildings)