To desire information about something; to wish to be informed or made aware of a fact, explanation, or detail.
2.
Worldwideneutralcolloquial
Used as a discourse marker to introduce or emphasize what the speaker is about to say, sometimes carrying a challenging or emphatic tone (e.g., 'You want to know...').
3.
Worldwideneutral
To seek clarity about one's status, position, or relationship (e.g., wanting to know where one stands).