Meaning of the word "on deck" in English

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

on deck

US /ɑn dɛk/
UK /ɒn dɛk/

Phrase

ready or next in line to do something

Example:
The next speaker is on deck, so please be ready.
We have three new projects on deck for next quarter.