What's up with 'ubī'?

1. What does Ubi mean Latin?
2. What case does Ubi take Latin?

What does Ubi mean Latin?

"place, location, position," 1610s, common in English c. 1640-1740, from Latin ubi "where?, in which place, in what place," relative pronominal adverb of place, ultimately from PIE *kwo-bhi- (source also of Sanskrit kuha, Old Church Slavonic kude "where"), locative case of pronominal root *kwo-.

What case does Ubi take Latin?

The ways the Romans talk about time and space are related. As ubi can mean both "when" and "where," so the ablative can be used to explain place where and time when (and the accusative can be used for the extent of time or the extent of space).