Phenomenon

Does anyone have a speech topic that I could do about a phenomenon? and this is a phenomenon?

It is all that is perceived by all senses.
A rainbow one, the other is an observation and ghost.
I did not speak of a subject, but that's what the word means.

· Phenomenon · no name · e (f-nm-nn-nn) KEY

NOUN:
pl. · Phenomenon name · E · na (-N)
An event, circumstance or fact that is perceptible to the senses.
pl. PHE · name · E · NONS
An unusual, significant or unexplained or an event, a marvel.
A remarkable or exceptional person, a paragon. See Synonyms at wonder.
Philosophy In the philosophy of Kant, an object as perceived by the senses, as opposed to a noumenon.
A physical observable event.

Definition:
1. An event, circumstance or fact that is perceptible to the senses.

2. An unusual, significant or unexplained or an event, a marvel.

Have you ever walked into a room that you've never been before and the smell in the room immediately remind you of a time and place of your past? Could be an interesting speech!