joint

Meanings

1. 1
   adj

   Done or shared by two or more people or groups together.

   The project was a joint effort by both teams.

2. 2
   noun

   A place where two parts are joined together, sometimes allowing movement.

   The pipe was leaking at the joint.

3. 3
   noun

   A place in the body where two bones meet, such as the knee or elbow.

   Her joints ache in cold weather.

The noun is from Middle English joynt (attested since the late 13th century), from Old French joint (“joint of the body”) (attested since the 12th century). The adjective (attested since the 15th century) is from Old French jointiz. Both Old French words are from Latin iūnctus, the past participle of iungō. See also join, jugular, junction. Displaced Old English fōg and partially displaced English lith. The meaning of "building, establishment", especially in connection with shady activities, appeared in Anglo-Irish by 1821 and entered general American English slang by 1877, especially in the s…

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