plural of Observant

plural of participant observer

plural of participant-observer

plural of Sabbath observer

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

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

a lookout or vantage point

plural of observation car