What is the meaning of Turn-up?

Fabric turned up at the bottom of trousers to make them shorter.

A fight or disturbance.

The next card taken from the top of a pack of cards and displayed.

A stroke of good luck; something that appears unexpectedly; especially in turn up for the book.

A book, intended for children, with flaps that can be lifted to reveal underlying text or images.

Source: wiktionary.org