What is the meaning idioms of a dead certainty?

The idiom "a dead certainty" means something that is absolutely certain to happen. It implies that there is no doubt or possibility of it not happening.

Here's a breakdown:

* Dead: This word emphasizes the absolute and final nature of the certainty. It suggests that there's no room for any other outcome.

* Certainty: This word refers to the guarantee or assurance that something will happen.

Here are some examples of how to use "a dead certainty":

* "With all the evidence against him, his conviction was a dead certainty."

* "It's a dead certainty that the sun will rise tomorrow morning."

* "After a successful season, winning the championship was a dead certainty for the team."

You can also use the idiom in a more informal way:

* "It's a dead cert that she'll win the election."

* "He's a dead cert to get the job."

Other idioms with similar meanings:

* A sure thing

* A lock

* A slam dunk

* A no-brainer