plural of Observant

Learning that occurs as a function of observing, retaining and, in the case of imitation learning, replicating novel behavior executed by other people.

(statistics) The difference between a measured value of a quantity and its true value.

plural of observational error

A style of comedy based on observations about everyday life.

An area of a tall building, often open to the sky, from which the public may look at the surrounding panorama. / A building (such as a hide) from which people may observe wildlife.

plural of observation post

plural of observation deck

a lookout or vantage point

plural of observation car