shut

from The American Heritage® Dictionary of the English Language, 5th Edition.

• intransitive verb To move (a door or lid, for example) so as to block passage through an opening.
• intransitive verb To fasten with a lock, catch, or latch.
• intransitive verb To block entrance to or exit from; close.
• intransitive verb To confine in a closed space.
• intransitive verb To exclude from a closed space.
• intransitive verb To fold up or bring together the parts of.
• intransitive verb To cause to stop operating.
• intransitive verb To move or become moved so as to block passage; close.
• intransitive verb To stop operating, especially automatically.
• noun The act or time of shutting.
• noun The line of connection between welded pieces of metal.
• idiom (shut (one's) eyes to) To refuse to consider or acknowledge.

from The Century Dictionary.

• Made fast or close; closed; inclosed. See shut, verb
• Not resonant or sonorous; dull: said of sound.
• In orthoëpy, having the sound suddenly interrupted or stopped by a succeeding consonant, as the i in pit or the o in got.
• Separated, precluded, or hindered; hence, free; clear; rid: followed by of: used chiefly in such phrases as to get shut of, to be shut of. Also shet.
• noun The grayling Thymallus vulgaris. Day.
• To shoot, as the bar or bolt or other fastening of a door or gate, or of a chest, etc.; push to; adjust in position so as to serve as a fastening.
• To make fast by means of a bolt, bar, or the like; hence, in later use, to close, with or without fastening; place in or over a place of entrance so as to obstruct passage in or out: as, to shut a door, gate, lid, cover, etc.: often followed by down, to, or up.
• To prevent passage through; cover; obstruct; block: sometimes followed by up.
• To close the entrance of; prevent access to or egress from: as, to shut a house; to shut a box; to shut one's ears: often followed by up.
• To bring together the parts of.
• To fold or bring together; bring into narrow compass from a state of expansion: as, to shut a parasol; to shut a book.
• To bar or lock in; hence, to confine; hem in; inclose; environ; surround or cover more or less completely: now always followed by a preposition or an adverb, as in, into, among, up, down, etc.
• To bar out; separate by barriers; put or keep out; exclude, either literally or figuratively; preclude: followed by an adverb or a preposition denoting separation.
• To catch and pinch or hold fast by the act of shutting something: as, to shut one's fingers or one's dress in a door; to shut one's glove in a window.
• To do; manage.
• To weld (iron). Halliwell. See to shut up , and shutting, n.
• To reduce to inaction or silence, especially the latter.
• To unite, as two pieces of metal by welding.
• To be a means of bolting, locking, or closing.
• To close itself; be closed: as, the door shuts of itself; certain flowers shut at night and open in the day.
• To be extravagant.
• To desist; leave off; especially, to stop talking.
• In sporting, to give out, as one horse when challenged by another in a race.
• noun The act of shutting, in any sense of the word.
• noun The time of shutting.
• noun That which shuts, closes, or covers; a shutter.
• noun The point or line of shutting; specifically, the line where two pieces of metal are united by welding.
• noun A riddance.
• noun An imperfect welding in a forging, caused by the inadequate heat of one surface under working.

from the GNU version of the Collaborative International Dictionary of English.

• intransitive verb To close itself; to become closed
• intransitive verb [Colloq.] to cease speaking.
• transitive verb To close so as to hinder ingress or egress