Nouns

(n)correspondent, letter writersomeone who communicates by means of letters
(n)correspondent, newspaperman, newspaperwoman, newswriter, pressmana journalist employed to provide news stories for newspapers or broadcast media

Adjectives

(s)analogous, correspondentsimilar or equivalent in some respects though otherwise dissimilar“brains and computers are often considered analogous”, “salmon roe is marketed as analogous to caviar”