Alarm clock and Understudy

Alarm clock noun - A clock that wakes a sleeper at some preset time.

Understudy and alarm clock are semantically related. In some cases you can use "Understudy" instead a noun phrase "Alarm clock".

Understudy noun - An actor able to replace a regular performer when required.

Alarm clock and understudy are semantically related. You can use "Alarm clock" instead a noun "Understudy".

Nearby Words: understudied, understudying