noun
- a submarine
- a substitute teacher
- a submarine sandwich
Usage: informal
Usage: informal
Usage: informal
verb
- to work as a substitute
- to replace someone or something
Usage: informal
Usage: informal
Examples
- The sub surfaced near the harbor.
- We had a sub in math class today.
- I ordered a turkey sub for lunch.
- She agreed to sub for the regular teacher.
- Can you sub for me at the meeting?
- The coach decided to sub the injured player.
- The nuclear sub patrolled the coast.