once, adj. num., eleven;
las —, eleven o'clock.
operación, f., operation;
me hace la misma —, [38], 9, has the same effect on me, produces the same sensation in me.
opinar, v. a., to opine, [126], 3.
opinión, f., opinion; [126], 24, reputation.
oportuno, na, adj., opportune, convenient, fitting.
ora, adv., now;
ora... ora, at one time ... at another.
Oración, f., [8], 11, sunset prayer, prayer at early candle-light.
oradora, f., orator, speaker (female), [119], 17.
orden, f., order, command.
orden, m., order, kind, [3], 16.