blanch

(intransitive) To grow or become white.

(transitive) To take the color out of, and make white; to bleach.

(transitive, cooking) To cook by dipping briefly into boiling water, then directly into cold water.

(transitive) To whiten, for example the surface of meat, by plunging into boiling water and afterwards into cold, so as to harden the surface and retain the juices

(transitive) To bleach by excluding the light, for example the stalks or leaves of plants, by earthing them up or tying them together

(transitive) To make white by removing the skin of, for example by scalding

(transitive) To give a white lustre to (silver, before stamping, in the process of coining)

(intransitive) To cover (sheet iron) with a coating of tin.

(transitive, figuratively) To give a favorable appearance to; to whitewash; to whiten;