countable noun. If something is a priority, it is the most important thing you have to do or deal with, or must be done or dealt with before everything else you have to do.

Is Main Priority correct?

Both are correct. Personally I may say 'that is our number one priority right now' before either option, however. 'Main priority' is also said, although to be truthful attaching any adjective to 'priority' could be considered superfluous.

What does priority mean example?

Frequency: Priority is defined as that something or someone is more urgent or important than other things. An example of priority is a claim that has to be processed right away and that jumps to the head of the line.