officer UK /ˈɒf.ɪ.sə/US /ˈɔ.fɪ.sɚ/noun 5verb 2forms 3 noun5 •a person with power to give orders in a group such as an army or the police •One who holds a public office. •(informal) A commissioned officer. •A respectful term of address for an officer, especially a police officer. •An agent or servant imparted with the ability, to some degree, to act on initiative. verb2 •To supply with officers. •To command as or like an officer.The regular battalions of the regiment, though officered mainly by Anglo-Welshmen of county families, did not normally contain more than about one Welshman in fifty in the ranks. — 1929 formsofficered · officering · officers