Noun

(en noun)

The act of observing, and the fact of being observed.

*

, title=(The Celebrity), chapter=5 , passage=But Miss Thorn relieved the situation by laughing aloud,

* {{quote-magazine, year=2012, month=March-April, author=(Jeremy Bernstein)

, volume=100, issue=2, page=146, magazine=(American Scientist) , title= A Palette of Particles , passage=The physics of elementary particles in the 20th century was distinguished by the observation of particles whose existence had been predicted by theorists sometimes decades earlier.}}

The act of noting and recording some event; or the record of such noting.

A remark or comment.

* Shakespeare

That's a foolish observation .

* Alexander Pope

To observations which ourselves we make / We grow more partial for the observer's sake.

A judgement based on observing.

Performance of what is prescribed; adherence in practice; observance.

* Jeremy Taylor

We are to procure dispensation or leave to omit the observation of it in such circumstances.

Noun

(en noun)

(surgery) Any of various medical instruments used to explore wounds, organs, etc.

(figuratively) Something which penetrates something else, as though to explore; something which obtains information.

An act of probing; a prod, a poke.

(figuratively) An investigation or inquiry.

They launched a probe into the cause of the accident.

(aeronautics) A tube attached to an aircraft which can be fitted into the drogue from a tanker aircraft to allow for aerial refuelling.

(sciences) A small device, especially an electrode, used to explore, investigate or measure something by penetrating or being placed in it.

Insert the probe into the soil and read the temperature.

(astronautics) A small, usually unmanned, spacecraft used to acquire information or measurements about its surroundings.

(game of go) a move with multiple answers seeking to make the opponent choose and commit to a strategy