IPA: /lɛfˈtɛnənt/
KK: /lɛfˈtɛnənt/
A person who holds a rank in the military or police, usually just below a captain or commander.
The lieutenant led the troops into battle with great courage.
Lieutenant → It originates from the Old French 'lieutenant' (meaning place holder or deputy), which is formed from 'lieu' (meaning place) and 'tenant' (meaning holder). A lieutenant is someone who holds a position in place of another, typically in a military context.
Think of a lieutenant as someone who 'holds' ('tenant') a position in 'place' ('lieu') of someone else — that's why they serve as a deputy.