Opiner

Part of speech: noun

Definitions

1. A person who conveys their personal beliefs or assessments about subjects under discussion
2. An individual who shares their views or evaluations on particular matters or topics of interest
3. A person who regularly shares their thoughts and judgments on various topics

Etymology: "Opiner" is a plain formation: the verb "opine," meaning to hold or express a belief, with the agent suffix "-er" added to name the person who does the opining. The verb itself comes from Latin "opinari," to think or suppose, and it carries the sense of a considered judgment rather than a firm fact, which the noun inherits. An opiner, then, is simply someone who regularly offers an opinion. The suffix does the work here. English has long attached "-er" to verbs to name doers, as with "writer" or "speaker," and "opiner" follows that pattern directly. Because "opine" is a somewhat formal verb, the noun tends to sound formal too, and it is most often used for commentators, critics, or panelists rather than for everyday talkers.