grab

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

• intransitive verb To take or grasp suddenly.
• intransitive verb To capture or restrain; arrest.
• intransitive verb To obtain or appropriate unscrupulously or forcibly.
• intransitive verb To take hurriedly.
• intransitive verb Slang To capture the attention of.
• intransitive verb To make a grasping or snatching motion.
• noun A sudden attempt to grasp or hold something.
• noun A sudden, often unscrupulous taking control or ownership of something.
• noun A mechanical device for gripping an object.
• adjective Relating or being an object or device that is grabbed or gripped for support or balance.
• idiom (up for grabs) Available for anyone to take or win.
• noun A usually two-masted, square-rigged Arab coastal vessel.

from The Century Dictionary.

• To seize forcibly or roughly; grip suddenly; snatch; hence, to get possession of rudely, roughly, forcibly, or illegally.
• To strike the heel of the front foot with the toe of the hind foot: said of a horse.
• noun The act of grabbing; a sudden grasp or seizure; a catch; hence, acquisition by violent, dishonest, or corrupt means.
• noun Something that is grabbed or obtained by grabbing.
• noun A mechanical device for gripping an object; a grip. Specifically
• noun A vessel used on the Malabar coast, having two or three masts.
• noun A form of dredger-bucket used for digging soft materials; a clam-shell bucket.
• noun plural Same as skidding-tongs.
• noun In forestry, the stem of an alder, or other small tree, which is bent over and plugged into a hole bored in a boom-stick, or secured in some other way, to hold a boom or logs inshore.
• noun A children's game at cards, in which, when two or more cards of equal value are on the table together, the player who is quickest to recognize and grab them adds them to his own hand.

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

• verb To gripe suddenly; to seize; to snatch; to clutch.
• noun A sudden grasp or seizure.
• noun An instrument for clutching objects for the purpose of raising them; -- specially applied to devices for withdrawing drills, etc., from artesian and other wells that are drilled, bored, or driven.
• noun [Colloq.] at fairs, a bag or box holding small articles which are to be drawn, without being seen, on payment of a small sum.
• noun [Colloq.] a theft committed by grabbing or snatching a purse or other piece of property.
• noun (Naut.) A vessel used on the Malabar coast, having two or three masts.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• verb to make a sudden grasping or clutching motion (at something)
• verb to restrain someone; to arrest
• verb to grip the attention; to enthrall
• verb informal to quickly collect or retrieve
• verb informal to consume something quickly
• verb To take the opportunity of.
• noun a sudden snatch (for something)
• noun a mechanical device that grabs
• noun media a soundbite

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• verb make a grasping or snatching motion with the hand
• verb obtain illegally or unscrupulously
• verb capture the attention or imagination of
• noun a mechanical device for gripping an object
• verb take hold of so as to seize or restrain or stop the motion of
• verb get hold of or seize quickly and easily
• noun the act of catching an object with the hands
• verb take or grasp suddenly