1.
When you tie something up, you fasten string or rope round it so that it is firm or secure.
He tied up the bag and took it outside.
PHRASAL VERB: V P n (not pron), also V n P
2.
If someone ties another person up, they fasten ropes or chains around them so that they cannot move or escape.
Masked robbers broke in, tied him up, and made off with $8,000...
At about 5 a.m. they struck again in Fetcham, tying up a couple and ransacking their house.
PHRASAL VERB: V n P, V P n (not pron)
3.
If you tie an animal up, you fasten it to a fixed object with a piece of rope so that it cannot run away.
Would you go and tie your horse up please...
They dismounted, tied up their horses and gave them the grain they had brought.
= tether
PHRASAL VERB: V n P, V P n (not pron)
4.
If you ~ an issue or problem, you deal with it in a way that gives definite conclusions or answers.
Kingfisher confirmed that it hopes to ~ a deal within the next two weeks...
We could have tied the whole case up without getting you and Smith shot at.
PHRASAL VERB: V P n (not pron), V n P
5.
see also tied up , tie-up