It's a very common verb and can be used in a variety of contexts:
* Je veux un café. (I want a coffee.)
* Ils veulent aller au cinéma. (They want to go to the cinema.)
* Elle veut apprendre le français. (She wants to learn French.)
Vouloir can also be used to express desire, need, or intention:
* Je veux te remercier. (I want to thank you.)
* Il faut que tu veuilles bien me suivre. (You need to be willing to follow me.)
* J'ai voulu te dire quelque chose. (I wanted to tell you something.)
The conjugation of vouloir is somewhat irregular, so it's important to learn its different forms:
* Je veux
* Tu veux
* Il/Elle/On veut
* Nous voulons
* Vous voulez
* Ils/Elles veulent
Let me know if you'd like more examples or want to learn more about the conjugation of vouloir!