critic-n; 2 Senses

Sense Number 1: A person who is professionally engaged in the analysis and interpretation of works of art.

Commentary: CRITIC[+professional]

I work as a critic for the New York Times.
Mariam makes a living working as a critic.

WordNet 3.0 Sense Numbers: 1

Sense Number 2: Anyone who judges or finds fault with something.

Commentary: CRITIC[+human]

He is a critic of our current politics.
I am a staunch critic of the President.

WordNet 3.0 Sense Numbers: 2, 3