n., pl. -na (-nə).
An occurrence, circumstance, or fact that is perceptible by the senses.
An unusual, significant, or unaccountable fact or occurrence; a marvel.
A remarkable or outstanding person; a paragon. See synonyms at wonder.
Philosophy. In the philosophy of Kant, an object as it is perceived by the senses, as opposed to a noumenon.
Physics. An observable event.
[Late Latin phaenomenon, from Greek phainomenon, from neuter present participle of phainesthai, to appear.]