obispo, m., bishop.
objetar, v. a., to object.
objeto, m., object; purpose.
obligar, v. a., to oblige, to compel.
obra, f., work.
obrilla, f., little work, little book.
obscuridad, f., darkness.
obscuro, ra, adj., obscure; dark.
obsequiar, v. a., to treat with distinction.
observar, v. a., to remark, to observe; to say; to watch.