1. The federal department in the United States that sets and maintains foreign policies
   - Department of State, United States Department of State, State Department, State

1. An operating system that is on a disk
   "MS-DOS was an early disk operating system";
   - disk operating system

1. A party or social event
   "The charity do raised thousands for the cause";
   - bash [informal]
    
2. The syllable naming the first (tonic) note of any major scale in solmization
   "In the song 'Do-Re-Mi', Julie Andrews sings 'Doh, a deer, a female deer'"; "In the do-re-mi system, 'ut' was replaced by 'do'";
   - doh, ut
    
3. [informal] The arrangement of the hair (especially a woman's hair)
   "a fetching new do";
   - hairdo [informal], hairstyle, hair style, coiffure, coif

Type of: executive department, hair, operating system, OS, party, solfa syllable

Encyclopedia: DoS