Any of various shrubs or small trees of the genus Rhus and other genera in Anacardiaceae, particularly the elm-leaved sumac, Sicilian sumac, or tanner's sumac (Rhus coriaria).

(computing) The process of entering information into a device again, by means of a keyboard or similar. / (social sciences) The process of changing the key or tenor of something; a reframing.

The world or sphere of rifles.

(programming) A specially formatted comment in source code, used to document a specific segment of the code.