• 900... OAKHAM or OAKUM
• 901... OAR
• 902... OBSERVATION
• 903... OFF
• 904... OFFING
• 905... OFFWARD
• 906... OKER
• 907... OLERON
• 908... OPEN to the wind or sea
• 909... OPEN with a place

910... OPENING to OUT-FIT

• 910... OPENING
• 911... ORDINARY
• 912... ORLOP
• 913... OVER-BOARD
• 914... OVER-CAST-STAFF
• 915... OVER-HAULING
• 916... OVER-MASTED
• 917... OVER-SETTING
• 918... OUT
• 919... OUT-FIT

920... OUT OF TRIM to OWNER

• 920... OUT OF TRIM
• 921... OUT-RIGGER
• 922... OWNER

Reference Works