1. A cavern

Derived forms: antres

• pretrial conference
• prettify
• prettily
• prettiness
• pretty
• pretty much
• pretty up
• pretty-pretty
• pretzel
• Preussen
• Prevacid
• prevail
• prevailing
• prevailing party
• prevailing westerly
• prevailing wind
• prevalence
• prevalent
• prevaricate
• prevarication
• prevaricator
• prevenient
• prevent
• preventable
• preventative