The action of perceiving or noticing.

The faculty, capacity or action of perceiving (esp. with the mind); perception; awareness; understanding. Cf. perceivance, n.

The capacity or action of perceiving; mental or physical perception; discernment, wisdom, understanding; awareness, sense.

figurative. An embracing or taking in with the eye or the mind.

The action of laying hold of with the senses; conscious perception. archaic.

The action of mentally looking at; contemplation, consideration; perception, recognition; mental view. Obsolete.

Philosophy. The action of the mind by which it refers sensations to external objects, phenomena, etc., as their cause.

Mental perception, recognition.

Connected with, or having reference to, what is outside; having an outside object or sphere of operation. external perception: the perception of…