opprobre, n.m., opprobrium, shame, disgrace, reproach. Être l’— de sa famille; to be the disgrace of one’s family.

optati-f, -ve, adj., optative.

optatif, n.m., (gram.) optative.

opter, v.n., to choose, to declare. Il faut qu’il opte entre ces deux emplois; he must choose between (for or against) those two occupations.

opticien (-si-in), n.m., optician.

optimé (-mé), adv., bravo, capital, very well, perfectly well.

optimisme, n.m., optimism.

optimiste, n.m.f. and adj., optimist; of optimists.

option, n.f., option, choice. Avoir l’—; to have the choice. Je vous en laisse l’—; I leave you the choice.

optique, adj., optic, optical. Le nerf —; the optic nerve. Illusion —; optical illusion.