I. verb
Synonyms: interpose 2, intercede, interfere, intervene, mediate, step in
II. adjective
1.
Synonyms: middle 2, center, central, intermediary, mean, medial, median, mid
2.
Synonyms: medium , average, fair, fairish, indifferent, mean, mediocre, middling, moderate, so-so
III. noun
Synonyms: go-between 2, broker, entrepreneur, interagent, interceder, intercessor, intermediary, intermediator, mediator, middleman