blanc vs bechamel

blanc and bechamel both are nouns.

Word	Noun	Adjective	Verb	Adverb
blanc	Yes	No	No	No
bechamel	Yes	No	No	No

As nouns, bechamel is a hypernym of blanc; that is, bechamel is a word with a broader meaning than blanc:

blanc: a white sauce of fat, broth, and vegetables (used especially with braised meat)
bechamel: milk thickened with a butter and flour roux

Other hypernyms of blanc include bechamel sauce, white sauce.

blanc (noun)	bechamel (noun)
a white sauce of fat, broth, and vegetables (used especially with braised meat)	milk thickened with a butter and flour roux