aplomb /ə-plomˈ or (French) a-plɔ̃ˈ/

1. Literally, perpendicularity
2. Self-possession, coolness

• longitude
• longitudes
• longitudinal
• longitudinally
• longitudinal wave
• longitudinal waves
• long johns
• long jump
• long jumper
• long jumpers
• long jumping
• long jumps
• longleaf pine
• longleaf pines
• long leg
• long-legged
• long-legs
• long lens
• long lenses
• long-life
• long-line
• long-liner
• long-liners
• long-lines
• long-lining