advancing quickly and certainly.

The principal made sure these kids got on a fast track toward graduation and college.

Related vocabulary: life in the fast lane, in the fast lane

Etymology: based on a fast track in horse racing (= a dry, smooth surface that is easy to run on)

• look in on
• look in on someone
• look in the eye
• look in the eyes
• look in the face
• look into
• look into something
• look like
• look like a drowned rat
• look like a million dollars
• look like something
• look like something the cat brought in
• look like something the cat dragged in
• Look lively!
• look on the bright side
• look out
• look out for
• look out for someone
• look out for something
• look over
• look right through
• look right through someone
• Look sharp!
• look someone in the eye
• look someone in the eyes