lid

American Heritage® Dictionary of the English Language, Fourth Edition

1. n. A removable or hinged cover for a hollow receptacle or box.
2. n. An eyelid.
3. n. Biology A flaplike covering, such as an operculum.
4. n. A curb, restraint, or limit: approved a new lid on corporate spending.
5. n. Informal An act of concealment; a cover: told us to keep a lid on the report until the campaign was over.
6. n. Slang A hat.
7. n. Slang An ounce of marijuana.
8. v. To cover with or as if with a lid.

Century Dictionary and Cyclopedia

1. n. A movable cover which closes an aperture or shuts in a cavity, and usually forms an integral part of the structure to which it belongs by being either attached or closely fitted to it: as, the lid of a tea-kettle, stove, chest, or desk.
2. n. In botany, the upper section of a pyxis, which separates by a transverse line; also, the hood of the leaf in the pitcher-plants; in mosses, the operculum.
3. n. An eyelid.
4. n. In coal-mining, a short piece of timber placed on top of a prop to help in supporting the roof.
5. n. A coverlet. —
6. n. One of the covers or boards of a book: as, everything between the lids of the Bible.
7. To put a lid on (something); put a cover on; hide.

Wiktionary

1. n. The top or cover of a container.
2. n. slang A cap or hat.
3. n. slang One ounce of cannabis.
4. n. surfing, slang A bodyboard or bodyboarder.
5. n. slang A motorcyclist's crash helmet.
6. n. slang In amateur radio, an incompetent operator.
7. n. abbreviation Eyelid.
8. v. To put a lid on something.

GNU Webster's 1913

1. n. That which covers the opening of a vessel or box, etc.; a movable cover.
2. n. The cover of the eye; an eyelid.
3. n. The cover of the spore cases of mosses.
4. n. A calyx which separates from the flower, and falls off in a single piece, as in the Australian Eucalypti.
5. n. The top of an ovary which opens transversely, as in the fruit of the purslane and the tree which yields Brazil nuts.

WordNet 3.0

1. n. headdress that protects the head from bad weather; has shaped crown and usually a brim
2. n. either of two folds of skin that can be moved to cover or open the eye
3. n. a movable top or cover (hinged or separate) for closing the opening at the top of a box, chest, jar, pan, etc.