i Register
In some senses, bobsled is marked as US. Watch for register when choosing this word.
noun
A sled used to go down a bob track.
The sport of travelling down a bob track as fast as possible.
A short sled, mostly used as one of a pair connected by a reach or coupling; the compound sled so formed.
W. D. Howells The long wagon body set on bobsleds.
verb
To ride or race in a bobsled.