What is the word covert an adjective or verb?

"Covert" can be both an adjective and a verb, depending on how it's used:

Adjective: Meaning hidden, secret, or disguised.

* Example: The spy conducted a covert operation.

Verb: Meaning to hide, shelter, or disguise something.

* Example: The agency covertly gathered intelligence on the enemy.

Let me know if you need further clarification!