Meaning of the word sub in English

What does sub mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

sub

US /sʌb/
UK /sʌb/

Noun

1.

a submarine

Example:
The navy deployed a new attack sub.
We saw a documentary about deep-sea exploration subs.
2.

a sandwich made in a long roll

Example:
I'll have a turkey sub for lunch.
They serve great Italian subs at that deli.
3.

a substitute

Example:
The teacher called for a sub because she was sick.
He came on as a second-half sub in the football match.

Verb

to substitute

Example:
Can you sub for me in the meeting tomorrow?
We had to sub out the injured player.

Prefix

under; below

Example:
The word 'submarine' contains the prefix 'sub-'.
A 'subterranean' passage is one that is below the ground.
Related Word: