elbow elbow /ˈɛlˌboʊ/

noun

1. () Hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped  ( articulatio cubiti , cubital joint , cubitus , elbow , elbow joint , human elbow )
   hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped
    I accidentally bumped my elbow against the door
   I accidentally bumped my elbow against the door
   
   
2. () A sharp bend in a road or river  ( elbow )
   a sharp bend in a road or river
   
3. The joint of a mammal or bird that corresponds to the human elbow  ( elbow )
   the joint of a mammal or bird that corresponds to the human elbow
    The bird injured its elbow after a minor collision with the window.
   The bird injured its elbow after a minor collision with the window.
   
   
4. The part of a sleeve that covers the elbow joint  ( elbow )
   the part of a sleeve that covers the elbow joint
    His coat had patches over the elbows
   his coat had patches over the elbows
   
   
5. A length of pipe with a sharp bend in it  ( elbow )
   a length of pipe with a sharp bend in it
   

verb

1. () Push one's way with the elbows  ( elbow )
   push one's way with the elbows
   
2. Shove one's elbow into another person's ribs  ( elbow )
   shove one's elbow into another person's ribs