fellow men; between men; among men; man-to-man
fellow women; between women; among women; woman-to-woman
next-door neighbors; (living, sitting) next to each other
fellow men; between men; among men; man-to-man
fellow women; between women; among women; woman-to-woman
mankind; the human creature; fellow creatures
lover; boyfriend; girlfriend; soul mate
two people alike; two of a kind; kissing cousins; cut from the same cloth
peers; friends; fellow workers; comrades
one's fellow workers; fellow employees