(1):
(n.) One who communicates information, etc., by letter or telegram to a newspaper or periodical.
(2):
(n.) One with whom intercourse is carried on by letter.
(3):
(n.) One who carries on commercial intercourse by letter or telegram with a person or firm at a distance.
(4):
(a.) Suitable; adapted; fit; corresponding; congruous; conformable; in accord or agreement; obedient; willing.