mask

1. A cover, or partial cover, for the face, used for disguise or protection.

   a dancer's mask; a fencer's mask; a ball player's mask

2. That which disguises; a pretext or subterfuge.
3. A festive entertainment of dancing or other diversions, where all wear masks; a masquerade
4. A person wearing a mask.
5. A dramatic performance, formerly in vogue, in which the actors wore masks and represented mythical or allegorical characters.
6. A grotesque head or face, used to adorn keystones and other prominent parts, to spout water in fountains, and the like
7. (fortification) In a permanent fortification, a redoubt which protects the caponiere.
8. (fortification) A screen for a battery
9. The lower lip of the larva of a dragonfly, modified so as to form a prehensile organ.
10. (Puebloan) A ceremonial object used in Puebloan kachina cults that resembles a Euro-American mask. (The term is objected to as an appropriate translation by Puebloan peoples as it emphasizes imitation but ignores power and representational intent.)
11. A pattern of bits used in bitwise operations; bitmask.
12. A two-color (black and white) bitmap generated from an image, used to create transparency in the image.
13. The head of a fox, shown face-on and cut off immediately behind the ears.

1. To cover (the face or something else), in order to conceal the identity or protect against injury; to cover with a mask or visor.
2. To disguise; to cover; to hide.
3. To conceal; also, to intervene in the line of.
4. To cover or keep in check.

   to mask a body of troops or a fortess by a superior force, while some hostile evolution is being carried out

5. To take part as a masker in a masquerade
6. To wear a mask; to be disguised in any way
7. To cover or shield a part of a design or picture in order to prevent reproduction or to safeguard the surface from the colors used when working with an air brush or painting
8. To set or unset (certain bits, or binary digits, within a value) by means of a bitmask.
9. To disable (an interrupt, etc.) by setting or unsetting the associated bit.

1. A mesh.
2. The mesh of a net; a net; net-bag.

noun

Mash.

1. To mash.
2. To mix malt with hot water to yield wort.
3. To be infused or steeped.
4. To prepare tea in a teapot; alternative to brew.

verb

To bewilder; confuse.