a 'traveling companion' [=a person who goes with you when you travel somewhere]
The car was 'traveling' at a very high (rate of) speed.
That car was really 'traveling' when it passed us.
(..) Interesting. Anyway,that gives us a total weight of,let's say pounds. Let's say . Fine. We're traveling forward at-- good lord-- miles an hour. Now let's assume that your brakes are new and the calipers are aligned. Still,by the time we come to a stop, we'll be occupying the same space (..)2007 TvShow: The Big Bang Theory Title: The Luminous Fish Effect Season: 1 Episode 4