lieutenant
//luːˈtɛnənt//
Noun
lieutenantSingular
lieutenantsPlural
1
A commissioned officer in the armed forces, typically ranking below a captain.
He was promoted to lieutenant after serving two years in the army.
2
A police officer ranking below a captain.
Lieutenant Johnson was promoted to captain after ten years of service.
3
A deputy or substitute acting for a superior; a person who assists or represents another in their duties.
She served as the manager's lieutenant, handling daily operations in his absence.