What is another word for "intermediate"?

Roget's Thesaurus (1911) lists these synonyms for "intermediate": accoucheur, accoucheuse, agency, aid, all, along, another, assistance, average, balance, common, commonplace, compromise, conducive, course, crook, denominator, difference, dint, expedient, fair, for, foul, generality, golden, hand, handmaid, hereby, hook, instrument, instrumental, instrumentality, intermedium, intervene, intervention, key, latchkey, least, long, master.