lieutenant
🇺🇸
/luːˈtenənt/
🇬🇧
/lefˈtenənt/
a middle-ranking officer in the military
The lieutenant led the soldiers into battle.
an officer just below a higher rank
The lieutenant colonel commanded the regiment.
a high-ranking police officer in the US
The police lieutenant investigated the crime.
a helper or substitute for someone in charge
She served as the manager's lieutenant during his absence.