- Do not disturb
- Used on keypads for telephones and other space-constrained locations and situations
- (games) Abbreviation of Dungeons & Dragons.
- (computing) Initialism of drag and drop.
- (military, Canada) Initialism of Department of National Defence.
- (military, Phillipines) Initialism of Department of National Defence.
- do not disturb
dnd - Computer Definition
See do not disturb.