Tie/taɪ/ Definition 1 of 6Pro Tip 1/2Tie Up Meaning Tie up often means to complete or finish something, like a task. Let's tie up these loose ends before the weekend. Pro Tip 2/2Tie Together Figuratively Figuratively, 'tie together' can mean to make disparate things work as a whole. The colors tie the room's decor together nicely.