1. one of the bony, permanent, hollow paired growths, often curved and pointed, that project from the upper part of the head of certain hooved mammals, as cattle, sheep, goats, or antelopes.
2. a similar growth, sometimes of hair, as the median horn or horns on the snout of the rhinoceros, or the tusk of the narwhal.
3. antler.
4. a process projecting from the head of an animal and suggestive of such a growth, as a feeler, tentacle, or crest.
5. the bony substance of which such animal growths are composed.
6. any similar substance, as that forming tortoise shell, hoofs, nails, or corns.
7. an article made of the material of an animal horn or like substance, as a thimble, spoon, or shoehorn.
8. any projection or extremity resembling the horn of an animal.
9. something resembling or suggesting an animal horn: a drinking horn.
10. a part resembling an animal horn attributed to deities, demons, etc.: the devil's horn.
11. the imaginary projections on a cuckold's brow.
12. Music.
• a wind instrument, originally formed from the hollow horn of an animal but now usually made of brass or other metal or plastic.
• French horn.
13. something used as or resembling such a wind instrument.
14. a trumpet.
15. an instrument for sounding a warning signal: an automobile horn.
16. any of certain short, armlike levers on the control surfaces of an airplane.
17. Radio.
• a tube of varying cross section used in some loudspeakers to couple the diaphragm to the sound-transmitting space.
• a loudspeaker.
18. a telephone or radiotelephone: I've been on the horn all morning.
19. the high protuberant part at the front and top of certain saddles; a pommel, especially a high one.
20. (in a door or window frame) that part of a jamb extending above the head.
21. one of the curved extremities of a crescent, especially of the crescent moon.
22. a crescent-shaped tract of land.
23. a pyramidal mountain peak, especially one having concave faces carved by glaciation.
24. a symbol of power or strength, as in the Bible: a horn of salvation.
25. each of the alternatives of a dilemma.
26. the narrow, more pointed part of an anvil.
27. ear tuft.
28. a projection at the side of the end of a rolled sheet or strip, caused by unevenness of the roll due to wear.
29. (in a lever escapement) either of the two prongs at the end of the lever fork guarding against overbanking when the guard pin is in the crescent.

30. to cuckold.
31. to butt or gore with the horns.
32. to set up (a frame or bulkhead of a vessel being built) at a proper angle to the keel with due regard to the inclination of the keel on the ways; plumb.

33. made of horn.

34. to publicize or boast about one's abilities or achievements: He's a bright fellow, but likes to blow his own horn too much.
35. to restrain oneself or become less belligerent; retreat: Since he lost so much gambling, he's drawn in his horns a bit.
36. to thrust oneself forward obtrusively; intrude or interrupt: Every time we try to have a private conversation, the boss horns in.
37. to conflict, quarrel, or disagree: The administration and the staff locked horns over the proposed measures.
38. confronted with two equally disagreeable choices.

1. either of a pair of permanent outgrowths on the heads of cattle, antelopes, sheep, etc, consisting of a central bony core covered with layers of keratin
2. the outgrowth from the nasal bone of a rhinoceros, consisting of a mass of fused hairs
3. any hornlike projection or process, such as the eyestalk of a snail
4. the antler of a deer
• the constituent substance, mainly keratin, of horns, hooves, etc
• (in combination)
6. a container or device made from this substance or an artificial substitute
7. an object or part resembling a horn in shape, such as the points at either end of a crescent, the point of an anvil, the pommel of a saddle, or a cornucopia
8. a primitive musical wind instrument made from the horn of an animal
9. any musical instrument consisting of a pipe or tube of brass fitted with a mouthpiece, with or without valves
10. any wind instrument
• a device for producing a warning or signalling noise
• (in combination)
12. the hornlike projection attributed to certain devils, deities, etc
13. the imaginary hornlike parts formerly supposed to appear on the forehead of a cuckold
14. an extension of an aircraft control surface that projects in front of the hinge providing aerodynamic assistance in moving the control
• a hollow conical device coupled to the diaphragm of a gramophone to control the direction and quality of the sound
• any such device used to spread or focus sound, such as the device attached to an electrical loudspeaker in a public address system
• a microwave aerial, formed by flaring out the end of a waveguide
16. geology another name for pyramidal peak
17. a stretch of land or water shaped like a horn
18. an erection of the penis
19. a symbol of power, victory, or success
20. to boast about oneself; brag
21. draw in one's horns or pull in one's horns
• to suppress or control one's feelings, esp of anger, enthusiasm, or passion
• to withdraw a previous statement
• to economize
22. on the horns of a dilemma
• in a situation involving a choice between two equally unpalatable alternatives
• in an awkward situation

23. to provide with a horn or horns
24. to gore or butt with a horn

1. Cape See Cape Horn

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