Any device which attaches to a (possibly unwilling) object, and attempts to draw it towards the place the hook is attached
Grapnel hook, a hook attached to a rope, designed to give traction on a distant object (such as a wall, tree or a vehicle) by snagging on its edge or corner when thrown;
Lanyard hook, A springy flat stock wire item formed wide at one end, narrow at the other. It opens inward with thumb pressure and stays closed by the temper of the wire.;
Lifting hook, a device for grabbing and lifting loads;
Siege hook, a weapon used in medieval and classical siege warfare to tear down walls in fortifications;
Sister Hook, Two overlapping metal hooks hinged to form a heart outline when open. Used as a clasp. Photo here ;
One part of a hook-and-eye, a type of textile closure.;
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In music:
Hook (music), a catchy musical passage;
Hook (song), a Blues Traveler song;
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In sport:
Hook (boxing), a boxing punch in which the arm is swung bent;
Hook shot a type of shot in basketball.;
Fishing hook, a device used to catch fish.;
A slang term for a curveball in baseball.;
Hook, a type of golf shot;
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In language:
Hook (rhetoric);
Hook (diacritic), a diacritical mark in the Vietnamese alphabet;
Narrative hook, a type of plot device in screenwriting and literature;
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As in Captain Hook:
Captain Hook, a fictional villain from J. M. Barrie's Peter Pan, a children's novel;
Hook (film), a 1991 motion picture sequel to the Peter Pan books and stageplay starring Dustin Hoffman and Robin Williams;
Hook (video game), video games based on the film;
Abu Hamza, a radical Muslim Cleric known in the British tabloid press as 'Hook' or 'Captain Hook', so named for the hook in place of his missing right hand, currently serving a prison sentence for incitement of racial hatred.;
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Hook (Transformers), a Constructicon surgical engineer and truck crane in the Transformers universe;
Telephone hook, a cradle on which a telephone handset rests;
Prosthetic hook, a crude hand prosthesis;
Bondage hook, a device used in sexual bondage play;
"Hook-and-loop" fasteners such as Velcro;
Hooking, a computer programming technique used in event handling;
Tailhook, an implement on navy aircraft to allow safe carrier landing.;
Eye bolt (or eye hook), a device used to connect string.;
The Hook, a classic urban legend.;