(computer graphics) A technique in animation in which consecutive frames are layered translucently to aid the animator.

(slang) The transfer of a large quantity of information or knowledge from one person to another, as for example when one skilled employee is to replace another.

(naval, historical, slang) A thread of red or blue worsted, worked into the ropes manufactured in the government dockyards, to identify them if stolen. Also a blue thread worked into canvas for the...

A weeper, someone who sobs.