mitten vs glove

mitten and glove both are nouns.

Word	Noun	Adjective	Verb	Adverb
mitten	Yes	No	No	No
glove	Yes	No	No	No

As nouns, glove is a hypernym of mitten; that is, glove is a word with a broader meaning than mitten:

mitten: glove that encases the thumb separately and the other four fingers together
glove: handwear: covers the hand and wrist

mitten (noun)	glove (noun)
glove that encases the thumb separately and the other four fingers together	handwear: covers the hand and wrist
	the handwear used by fielders in playing baseball
	boxing equipment consisting of big and padded coverings for the fists of the fighters; worn for the sport of boxing