(military, government) Initialism of office of primary interest.

A surname from Cornish.

plural of Opie

plural of OPI

(nonstandard) plural of magnum opus

A belief, judgment or perspective that a person has formed, either through objective or subjective reasoning, about a topic, issue, person or thing.

(transitive, archaic) To have or express as an opinion.

(uncountable) A yellow-brown, addictive narcotic drug obtained from the dried juice of unripe pods of the opium poppy, Papaver somniferum, and containing alkaloids such as morphine, codeine, and papaverine.

(intransitive, transitive) To have or express an opinion; to state as an opinion; to suppose, consider (that). / (intransitive) To give one's formal opinion (on or upon something).

(biochemistry) Any of a class of organic compounds, derived from amino acids, found in some plant tumours