1. To see and identify by noting a difference or differences; to note the distinctive character of; to discriminate; to distinguish.
2. To see by the eye or by the understanding; to perceive and recognize.

1. To be a distinctive feature, attribute, or trait; sometimes in a very positive sense; SYN. mark, differentiate.
2. To mark as different; SYN. separate, differentiate, secern, secernate, severalize, tell, tell apart.

1. To become conscious of
2. To become aware of through the senses; SYN. comprehend.