phenomenon

noun7

1. •
   A thing or being, event or process, perceptible through senses; or a fact or occurrence thereof.

   • The year 1866 was signalised by a remarkable incident, a mysterious and inexplicable phenomenon, which doubtless no one has yet forgotten. — 1873
2. •
   A knowable thing or event (e.g. by inference, especially in science).

   • An electromagnetic phenomenon.
3. •
   A kind or type of phenomenon.

   • A volcanic eruption is an impressive phenomenon.
4. •
   A fact or event considered very unusual, curious, or astonishing by those who witness it.

   • The phenomenon of a huge blazing fire, upon the opposite bank of the glen, again presented itself to the eye of the watchman. . . . He resolved to examine more nearly the object of his wonder. — 1816
5. •
   A wonderful or very remarkable person or thing.

   • "This, sir," said Mr Vincent Crummles, bringing the maiden forward, "this is the infant phenomenon—Miss Ninetta Crummles." — 1838
6. •
   Appearance; a perceptible aspect of something that is mutable.
7. •
   An experienced object whose constitution reflects the order and conceptual structure imposed upon it by the human mind (especially by the powers of perception and understanding).

   • Every "phenomenon" must be, at any rate, partly subjective or dependent on the subject. — 1900