To make distinctions.
To make decisions based on prejudice.
To set apart as being different; to mark as different; to separate from another by discerning differences; to distinguish.
To treat or affect differently, depending on differences in traits.
Having the difference marked; distinguished by certain tokens.
To indicate; to be a sign of.
To furnish (a traffic intersection) with a traffic signal.
To communicate with (someone) by means of a signal.