1. Partly or entirely open to the sky
   - hypethral

See also: unenclosed

• nail polish
• nail pulling
• nail removal
• nail varnish
• nail-biter
• nail-biting
• nail-tailed kangaroo
• nail-tailed wallaby
• nailbrush
• nailer
• nailfile
• nailhead
• nailrod
• nainsook
• naira
• Nairobi
• Naismith
• naive
• naive art
• naive realism
• naively
• naiveness
• naivety
• Naja
• Naja haje