| parallel |
| unanimously(adverb, jointly, collectively, mutually) |
| accordantly |
| coincidently |
| combined(together, closely, jointly, collectively, accordingly) |
| concertedly(closely, jointly, collectively, mutually) |
| contemporarily |
| en masse(expression, together, closely, jointly, collectively) |
| in chorus(expression, together, jointly, harmoniously) |
| in common(expression, together, jointly, collectively, accordingly) |
| in concert(expression, together, closely, jointly, collectively) |
| in concert with(expression, idiom) |
| in partnership(expression, together, jointly, collectively, accordingly) |
| in sync(expression, closely, jointly, collectively, mutually) |
| on the beat(expression, idiom, closely, jointly, collectively) |
| side by side(expression, together, closely, jointly, collectively) |
| synergistically |
| with one accord(expression, idiom, jointly, collectively, mutually) |
| with one voice(expression, idiom, closely, jointly, collectively) |
| synchronically(adverb, together, closely, jointly, collectively) |