Example: Senior professors' wives no longer make afternoon calls on newcomers.
The characters in Henry James' novels are forever paying calls on each other, usually in the parlor of some residence.
source: wordnet30
a demand by a broker that a customer deposit enough to bring his margin up to the minimum requirement(noun.communication)
The act of calling; -- usually with the voice, but often otherwise, as by signs, the sound of some instrument, or by writing; a summons; an entreaty; an invitation; as, a call for help; the bugle's call.(noun)
source: webster1913
verb (v)
assign a specified (usually proper) proper name to(verb.communication)