sampler vs critic

sampler and critic both are nouns.

Word	Noun	Adjective	Verb	Adverb
sampler	Yes	No	No	No
critic	Yes	No	No	No

As nouns, critic is a hypernym of sampler; that is, critic is a word with a broader meaning than sampler:

sampler (noun)	critic (noun)
a piece of embroidery demonstrating skill with various stitches	a person who is professionally engaged in the analysis and interpretation of works of art
an observation station that is set up to make sample observations of something	anyone who expresses a reasoned judgment of something
an assortment of various samples	someone who frequently finds fault or makes harsh and unfair judgments
someone who samples food or drink for its quality