gleaner vs field hand

gleaner and field hand both are nouns.

Word	Noun	Adjective	Verb	Adverb
gleaner	Yes	No	No	No
field hand	Yes	No	No	No

As nouns, field hand is a hypernym of gleaner; that is, field hand is a word with a broader meaning than gleaner:

Other hypernyms of gleaner include farm worker, farmhand, fieldhand.

gleaner (noun)	field hand (noun)
someone who picks up grain left in the field by the harvesters	a hired hand on a farm
someone who gathers something in small pieces (e.g. information) slowly and carefully