Sleeve, n.
 1. The part of a garment which covers the arm; as, the sleeve of a coat or a gown.
 2. A narrow channel of water. [R.]
    The Celtic Sea, called oftentimes the Sleeve.   --Drayton.
 3. Mach. (a) A tubular part made to cover, sustain, or steady another part, or to form a connection between two parts. (b) A long bushing or thimble, as in the nave of a wheel. (c) A short piece of pipe used for covering a joint, or forming a joint between the ends of two other pipes.
 4. Elec. A double tube of copper, in section like the figure 8, into which the ends of bare wires are pushed so that when the tube is twisted an electrical connection is made. The joint thus made is called a McIntire joint.
 Sleeve button, a detachable button to fasten the wristband or cuff.
 Sleeve links, two bars or buttons linked together, and used to fasten a cuff or wristband.
 To laugh in the sleeve or To laugh up one's sleeve to laugh privately or unperceived, especially while apparently preserving a grave or serious demeanor toward the person or persons laughed at; that is, perhaps, originally, by hiding the face in the wide sleeves of former times.
 To pinon the sleeve of, or To hang on the sleeve of, to be, or make, dependent upon.