Simple Definition of sleeve
: the part of a shirt, jacket, etc., that covers all or part of your arm
: a part that fits over or around something to protect it or to hold its parts together
Full Definition of sleeve
: in an honest and open manner —used with wear <wears his emotions on his sleeve>
: held secretly in reserve <has a few tricks up her sleeve>
Examples of sleeve
a shirt with long sleeves
The joint is covered with a metal sleeve.
Origin of sleeve
Middle English sleve, from Old English slīefe; perhaps akin to Old English slēfan to slip (clothes) on, slūpan to slip, Old High German sliofan, Latin lubricus slippery
First Known Use: before 12th century
Seen and Heard
What made you want to look up sleeve? Please tell us where you read or heard it (including the quote, if possible).