biome vs woodland

biome and woodland both are nouns.

Word	Noun	Adjective	Verb	Adverb
biome	Yes	No	No	No
woodland	Yes	No	No	No

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

biome: a major biotic community characterized by the dominant forms of plant life and the prevailing climate
woodland: land that is covered with trees and shrubs

Other hyponyms of biome include desert, grassland, forest, timber, timberland.

biome (noun)	woodland (noun)
a major biotic community characterized by the dominant forms of plant life and the prevailing climate	land that is covered with trees and shrubs