A Hook

1. A rod bent into a curved shape, typically with one end free and the other end secured to a rope or other attachment. https://en.wikipedia.org/wiki/Hook
2. A barbed metal hook used for fishing; a fishhook.
3. Any of various hook-shaped agricultural implements such as a billhook.
4. The curved needle used in the art of crochet.
5. The part of a hinge which is fixed to a post, and on which a door or gate hangs and turns.
6. A loop shaped like a hook under certain written letters, for example, g and j. Hook (diacritic) - Wikipedia
7. A tie-in to a current event or trend that makes a news story or editorial relevant and timely.
8. A snare; a trap.
9. (in the plural) The projecting points of the thighbones of cattle; called also hook bones.
10. (informal) Removal or expulsion from a group or activity.
11. (agriculture) A field sown two years in succession.
12. (authorship) A brief, punchy opening statement intended to get attention from an audience, reader, or viewer, and make them want to continue to listen to a speech, read a book, or watch a play.
13. (narratology) A gimmick or element of a creative work intended to be attention-grabbing for the audience; a compelling idea for a story that will be sure to attract people's attention.
14. (bridge, slang) A finesse.
15. (card games, slang) A jack (the playing card).
16. (geography) A spit or narrow cape of sand or gravel turned landward at the outer end, such as Sandy Hook in New Jersey.
17. (music) A catchy musical phrase which forms the basis of a popular song.
18. (nautical, informal) A ship's anchor.
19. (programming) Part of a system's operation that can be intercepted to change or augment its behaviour. Synonym: endpoint
20. (Scrabble) An instance of playing a word perpendicular to a word already on the board, adding a letter to the start or the end of the word to form a new word.
21. (typography) a diacritical mark shaped like the upper part of a question mark, as in ỏ.
22. (typography, rare) a háček.
23. Senses relating to sports.
    1. (baseball) A curveball.
    2. (basketball) a basketball shot in which the offensive player, usually turned perpendicular to the basket, gently throws the ball with a sweeping motion of his arm in an upward arc with a follow-through which ends over his head. Also called hook shot.
    3. (bowling) A ball that is rolled in a curved line.
    4. (boxing) a type of punch delivered with the arm rigid and partially bent and the fist travelling nearly horizontally mesially along an arc
    5. (cricket) A type of shot played by swinging the bat in a horizontal arc, hitting the ball high in the air to the leg side, often played to balls which bounce around head height.
    6. (golf) A golf shot that (for the right-handed player) curves unintentionally to the left. (See draw, slice, fade.)
24. (Canada, Australia, military) Any of the chevrons denoting rank.
25. (slang) A prostitute. Synonym: hooker
26. (UK, slang, obsolete) A pickpocket.