metal glove vs gantlet

metal glove and gantlet both are nouns.

Word	Noun	Adjective	Verb	Adverb
metal glove	Yes	No	No	No
gantlet	Yes	No	No	No

As nouns, metal glove and gantlet are synonyms defined as:

Other synonyms of metal glove include gauntlet.

metal glove (noun)	gantlet (noun)
a glove of armored leather; protects the hand	a form of punishment in which a person is forced to run between two lines of men facing each other and armed with clubs or whips to beat the victim
	the convergence of two parallel railroad tracks in a narrow place; the inner rails cross and run parallel and then diverge so a train remains on its own tracks at all times
	a glove of armored leather; protects the hand
	a glove with long sleeve
	to offer or accept a challenge