(A "sled" in this sense is not pulled by an animal as a "sleigh" is.) A small, light vehicle with runners, used recreationally, mostly by children, for sliding down snow-covered hills.

(US) A vehicle on runners, used for conveying loads over the snow or ice.

(slang) A snowmobile.

(intransitive) To ride a sled.

(transitive) To convey on a sled.