mask

(noun) a covering to disguise or conceal the face.

(noun) activity that tries to conceal something. Examples: "No mask could conceal his ignorance." "They moved in under a mask of friendship."

(noun) a party of guests wearing costumes and masks. Synonyms: masquerade, masquerade party, masque.

(noun) a protective covering worn over the face.

(verb) hide under a false appearance. Synonyms: dissemble, cloak. Example: "He masked his disappointment."

(verb) put a mask on or cover with a mask. Example: "Mask the children for halloween."

(verb) make unrecognizable. Synonyms: disguise. Examples: "The herb masks the garlic taste." "We disguised our faces before robbing the bank."

(verb) cover with a sauce. Example: "Mask the meat."

(verb) shield from light. Synonyms: block out.