Elbow
WordNet
noun
(1) The joint of a mammal or bird that corresponds to the human elbow
(2) The part of a sleeve that covers the elbow joint
"His coat had patches over the elbows"
(3) A sharp bend in a road or river
(4) A length of pipe with a sharp bend in it
(5) Hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
verb
(6) Shove one's elbow into another person's ribs
(7) Push one's way with the elbows