microtoponym vs toponym

microtoponym and toponym both are nouns.

Word	Noun	Adjective	Verb	Adverb
microtoponym	Yes	No	No	No
toponym	Yes	No	No	No

As nouns, toponym is a hypernym of microtoponym; that is, toponym is a word with a broader meaning than microtoponym:

microtoponym: a name of a "minor" or small natural feature (e.g., a field, path, bridge, ditch, etc.).
toponym: the name by which a geographical place is known

Other hypernyms of microtoponym include place name.

microtoponym (noun)	toponym (noun)
a name of a "minor" or small natural feature (e.g., a field, path, bridge, ditch, etc.).	the name by which a geographical place is known