tie up

verb

1. 1

   finish the last row

2. 2

   secure with or as if with ropes

   tie down the prisoners

   tie up the old newspapers and bring them to the recycling shed

3. 3

   secure in or as if in a berth or dock

   tie up the boat

4. 4

   restrain from moving or operating normally

   Traffic is tied up for miles around the bridge where the accident occurred

5. 5

   invest so as to make unavailable for other purposes

   All my money is tied up in long-term investments