sledge vs toboggan

sledge and toboggan both are nouns.

Word	Noun	Adjective	Verb	Adverb
sledge	Yes	No	Yes	No
toboggan	Yes	No	Yes	No

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

sledge: a vehicle mounted on runners and pulled by horses or dogs; for transportation over snow
toboggan: a long narrow sled without runners; boards curve upward in front

Other hyponyms of sledge include bob, bobsled, bobsleigh, bobsled, bobsleigh, dog sled, dog sleigh, dogsled, luge, pung.

sledge (noun)	toboggan (noun)
a heavy long-handled hammer used to drive stakes or wedges	a long narrow sled without runners; boards curve upward in front
a vehicle mounted on runners and pulled by horses or dogs; for transportation over snow

sledge (verb)	toboggan (verb)
beat with a sledgehammer	move along on a luge or toboggan
transport in a sleigh
ride in or travel with a sledge