| collaboratively |
| in league |
| mutually(closely, jointly, collectively) |
| all at once |
| all together(expression, together, united, closely, jointly) |
| as one(expression, together, united, jointly, collectively) |
| at one fell swoop(expression, idiom, closely, jointly, collectively) |
| closely(jointly, collectively, commonly, mutually) |
| coincidentally(closely, jointly, collectively, unitedly, mutually) |
| collectively(together, united, closely, jointly, unitedly) |
| combined(closely, jointly, collectively, unitedly, mutually) |
| commonly(together, united, closely, jointly, collectively) |
| concertedly(together, united, closely, jointly, collectively) |
| concomitantly(closely, jointly, collectively, unitedly, mutually) |
| concurrently(closely, jointly, collectively, mutually) |
| conjointly(closely, jointly, collectively, unitedly, mutually) |
| contemporaneously(closely, jointly, collectively, commonly, unitedly) |
| en masse(expression, together, united, closely, jointly) |
| hand in glove(expression, idiom, closely, jointly, collectively) |
| hand in hand(expression, idiom, closely, jointly, collectively) |