(n) oil damper
(n) oiled leather
(n) oil burner
(n) oil-heater
(n) oil fence
(P)
(n) oil brake
(n) oil paint
(n) (uk) Chinese water chestnut (Eleocharis dulcis)
(n) a variety of raspberry (Rubus croceacanthus H. Lev.)
(n) ophiolite
(n) office wife
(n) optimizer
optimiser
(n) optimize
optimise
(n) (comp) Oracle 8
(n) (uk) garden strawberry (Fragaria x ananassa)
(n) (uk) calla lily (Zantedeschia aethiopica)
(n) olive oil
(n) organizer
organiser
(n) altruism
(n) Oregon pine (another term for the common Douglas fir, Pseudotsuga menziesii)
(n) (comp) online machines
(n) (comp) online equipment
(n) (comp) online storage
(n) (comp) online processing
online operation
(n) (comp) online state
(n) (comp) online diagnostics
(n) (comp) online control
(n) (comp) online communication
(n) (comp) online distribution
(n) (comp) online analysis