sledge vs dog sleigh

sledge and dog sleigh both are nouns.

Word	Noun	Adjective	Verb	Adverb
sledge	Yes	No	Yes	No
dog sleigh	Yes	No	No	No

As nouns, dog sleigh is a hyponym of sledge; that is, dog sleigh 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
dog sleigh: a sled pulled by dogs

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

sledge (noun)	dog sleigh (noun)
a heavy long-handled hammer used to drive stakes or wedges	a sled pulled by dogs
a vehicle mounted on runners and pulled by horses or dogs; for transportation over snow

sledge (verb)	dog sleigh (verb)
beat with a sledgehammer
transport in a sleigh
ride in or travel with a sledge