1. An officer holding a commissioned rank in the United States Navy or United States Coast Guard; below lieutenant and above ensign
   - lieutenant junior grade

Type of: commissioned naval officer

• duchy
• duck
• duck down
• duck hunter
• duck hunting
• duck pate
• duck sauce
• duck shot
• duck soup
• duck's egg
• duck-billed
• duck-billed dinosaur
• duck-billed platypus
• duckbill
• duckboard
• duckie
• ducking
• ducking stool
• duckling
• duckpin
• duckpins
• ducks and drakes
• duckweed
• duckweed family
• ducky