Meaning of tie up

Definition of tie up

(verb) secure with or as if with ropes; "tie down the prisoners"; "tie up the old newspapers and bring them to the recycling shed"
invest so as to make unavailable for other purposes; "All my money is tied up in long-term investments"
restrain from moving or operating normally; "Traffic is tied up for miles around the bridge where the accident occurred"
secure in or as if in a berth or dock; "tie up the boat"
finish the last row

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