grotto /grotˈō/

1. A cave
2. An imitation cave, usu fantastic or fanciful in appearance

grottˈoed adjective

grottˈo-work noun

• okes
• okey-doke
• okey-dokey
• okimono
• okimonos
• OKing
• Oking
• Okla.
• okra
• okras
• Oks
• okta
• oktas
• -ol
• OLAF
• olanzapine
• Olbers' paradox
• old
• old age
• old age pension
• old-age pension
• old-age pensioner
• old-age pensioners
• old-age pensions
• old as the hills