bob vs sled

bob and sled both are nouns.

Word	Noun	Adjective	Verb	Adverb
bob	Yes	No	Yes	No
sled	Yes	No	Yes	No

As nouns, sled is a hypernym of bob; that is, sled is a word with a broader meaning than bob:

bob: a long racing sled (for 2 or more people) with a steering mechanism
sled: a vehicle mounted on runners and pulled by horses or dogs; for transportation over snow

Other hypernyms of bob include sledge, sleigh.

As verbs, sled is a hypernym of bob; that is, sled is a word with a broader meaning than bob:

Other hypernyms of bob include sleigh.

bob (noun)	sled (noun)
a short abrupt inclination (as of the head)	a vehicle mounted on runners and pulled by horses or dogs; for transportation over snow
a short or shortened tail of certain animals
a small float usually made of cork; attached to a fishing line
a hanging weight, especially a metal ball on a string
a long racing sled (for 2 or more people) with a steering mechanism
a hair style for women and children; a short haircut all around
a former monetary unit in Great Britain

bob (verb)	sled (verb)
cut hair in the style of a bob	ride (on) a sled
make a curtsy; usually done only by girls and women; as a sign of respect
remove or shorten the tail of an animal
move up and down repeatedly in a quick, short movement
ride a bobsled