| hand in glove(expression, idiom, combined, closely, jointly) |
| hand in hand(expression, idiom, combined, closely, jointly) |
| hourly |
| in a body(expression, idiom, combined, closely, jointly) |
| in concert(expression, combined, closely, jointly, collectively) |
| in cooperation(expression, closely, jointly, collectively, commonly) |
| in one breath(expression, idiom, combined, closely, jointly) |
| in step |
| in sync(expression, combined, closely, jointly, collectively) |
| in time |
| jointly(closely, collectively, unitedly, mutually, inseparably) |
| mutually(combined, closely, jointly, collectively) |
| side by side(expression, idiom, combined, closely, jointly) |
| synchronically(combined, closely, jointly, collectively, unitedly) |
| synchronized |
| synchronous |
| unanimously(combined, closely, jointly, collectively, commonly) |
| unitedly(closely, jointly, collectively, mutually, inseparably) |
| with one accord(expression, idiom, combined, closely, jointly) |
| with one voice(expression, idiom, closely, jointly, collectively) |