hip

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

• adjective Keenly aware of or knowledgeable about the latest trends or developments.
• adjective Very fashionable or stylish.
• interjection Usually used to begin a cheer.
• noun The laterally projecting prominence of the pelvis or pelvic region from the waist to the thigh.
• noun A homologous posterior part in quadrupeds.
• noun The hip joint.
• noun Architecture The external angle formed by the meeting of two adjacent sloping sides of a roof.
• noun A rose hip.

from The Century Dictionary.

• noun The fruit of the dogrose or wild brier, Rosa canina or R. rubiginosa.
• To sprain, gall, or injure the hip of. In the extract the sense is doubtful.
• In architecture, to furnish with a hip: as, to hip a roof.
• To throw (one's adversary) over the hip.
• To hop.
• noun A morbid depression of spirits; melancholy: usually in the plural.
• noun The projecting part of an animal formed by the side of the pelvis and the upper part of the femur, with the flesh covering them; the upper part of the thigh; the haunch.
• noun The hip-joint.
• noun In entomology, the coxa or first joint of an insect's leg.
• noun In architecture: The external angle at the junction of two sloping roofs or sides of a roof.
• noun The rafter at the angle where two sloping roofs or sides of a roof meet. See cuts under hip-roof and jack-rafter
• To render hypochondriac or melancholy: scarcely used except as in the participial adjective hipped. See hipped.
• An exclamation used in applauding or giving the signal for applause: as, hip, hip, hurrah!

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

• noun (Bot.) The fruit of a rosebush, especially of the English dog-rose (Rosa canina); called also rose hip.
• noun (Bot.) the dog-rose.
• transitive verb To dislocate or sprain the hip of, to fracture or injure the hip bone of (a quadruped) in such a manner as to produce a permanent depression of that side.
• transitive verb To throw (one's adversary) over one's hip in wrestling (technically called cross buttock).
• transitive verb To make with a hip or hips, as a roof.
• transitive verb See Hip roof, under Hip.
• noun colloq. See hyp, n.
• adjective Aware of the latest ideas, trends, fashions, and developments in popular music and entertainment culture; not square; -- same as hep.
• adjective Aware of the latest fashions and behaving as expected socially, especially in clothing style and musical taste; exhibiting an air of casual sophistication; cool; with it; -- used mostly among young people in the teens to twenties.
• noun The projecting region of the lateral parts of one side of the pelvis and the hip joint; the haunch; the huckle.
• noun (Arch.) The external angle formed by the meeting of two sloping sides or skirts of a roof, which have their wall plates running in different directions.
• noun (Engin) In a bridge truss, the place where an inclined end post meets the top chord.
• noun (Anat.) the innominate bone; -- called also haunch bone and huckle bone.
• noun (Anat.) the pelvic girdle.
• noun (Anat.) the articulation between the thigh bone and hip bone.
• noun (Arch.) a finial, ball, or other ornament at the intersection of the hip rafters and the ridge.
• noun (Arch.) a molding on the hip of a roof, covering the hip joint of the slating or other roofing.
• noun (Arch.) the rafter extending from the wall plate to the ridge in the angle of a hip roof.
• noun (Arch.) a roof having sloping ends and sloping sides. See Hip, n., 2., and Hip, v. t., 3.
• noun a tile made to cover the hip of a roof.
• noun to have or get the advantage of; -- a figure probably derived from wresting.
• noun to overthrow completely; to defeat utterly.
• interjection Used to excite attention or as a signal; as, hip, hip, hurra!

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

• noun The fruit of a rose.
• verb transitive, slang To inform, to make knowledgeable.
• noun anatomy The outward-projecting parts of the pelvis and top of the femur and the overlying tissue.