Range order

A range order is a single-sided concentrated-liquidity position placed entirely above or below the current price, so it converts one token into another as price moves through it — functioning like a limit order that also earns fees along the way.

On Uniswap V3, you can deposit just one token into a narrow range on one side of the market. As price crosses that range, the pool swaps your token into the other one. Super9MM uses this mechanism for its limit-order and take-profit features.