observation

The act of observing.

The power or faculty of observing.

The fact of being observed.

The act or process of perceiving something, such as a phenomenon, often by means of an instrument, and making a record of the resulting information.

The result or record of such an act or process.

An inference, judgment, or remark that is made by observing.

The act or fact of observing, and noting or fixing in the mind; a seeing and noting; notice: as, a fact that does not come under one’s observation.

The habit or power of observing and noting: as, a man of great observation.