noun, masculine

maître-nageur

/mɛ.tʁə.na.ʒœʁ/

noun, masculine/mɛ.tʁə.na.ʒœʁ/plural: maîtres-nageurs

swimming instructor, swimming trainer, swimming coach; lifeguard (attendant employed to save swimmers in trouble or near drowning)

Compare German Schwimmmeister.