testa/ʹtestə/ noun (pl testae /ʹtestee/)

• occupation
• occupational
• occupational psychology
• occupational therapy
• occupy
• occur
• occurrence
• ocean
• oceanarium
• oceangoing
• Oceanian
• oceanic
• oceanography
• oceanology
• ocellate
• ocellated
• ocellus
• ocelot
• och
• oche
• ocher
• ochone
• ochre
• -ock
• ocker