1. A nervous, exciting, or uncomfortable situation
   - nail biter

Derived forms: nail-biters

• nightcrawler
• nightdress
• nighted
• nightfall
• nightgown
• nighthawk
• nightie
• nightingale
• nightjar
• nightlife
• nightlong
• nightly
• nightmare
• nightmarish
• nightrider
• nightshade
• nightshirt
• nightspot
• nightstand
• nightstick
• nighttime
• nightwalker
• nightwear
• nightwork
• nighty