(military) The second lowest rank of a commissioned officer in the United States Army, Air Force, or Marine Corps, ranking above a second lieutenant and below a captain. The rank of first lieutenant is equivalent to the naval rank of lieutenant junior grade.

plural of Lieutenant General

plural of Lieutenant General

A rank in the RAF, between that of flying officer and squadron leader, of a person in charge of a flight of aircraft, equivalent to a Royal Navy lieutenant or an Army captain

plural of second lieutenant

Obsolete form of lieutenant.

plural of lieutenantship

lieutenancy

(obsolete) lieutenancy

plural of lieutenant governor