plural of do

(music) plural of do

A move in square dancing in which two dancers face each other, then step forward and left until they have right shoulders adjacent, then move to a position where they are back to back, then move to have left shoulders adjacent, then return to facing each other.

Back to back.

plural of do do

(computing, historical) Acronym of Disk Operating System, a family of disk-based operating systems. / (US) Initialism of Department of State.

(military) Initialism of date of service. / (military) Initialism of date of separation. / (computing, Internet) Initialism of denial of service. / (sciences) Initialism of density of states.

(computing, Internet) A denial-of-service attack.

(transitive, computing, Internet) To commit a denial-of-service attack against.

(teaching) Director of Studies; someone in charge of the academic side of a school including training teachers and deciding course materials.