The seseo dialect of Spanish is used in what part the world?

The *seseo* dialect of Spanish is used in most of the Spanish-speaking world.

Here's a breakdown:

* Seseo: This dialect pronounces the letters "c" before "i" and "e" and the letter "z" with the same "s" sound.

* Ceceo: This dialect uses a "th" sound (like in "thin") for both "c" before "i" and "e" and the letter "z".

Seseo is the dominant dialect:

* Latin America: All countries in Latin America use seseo.

* Spain: Most of Spain uses seseo, with the exception of the Canary Islands and a few areas in Andalusia.

Ceceo is the minority dialect:

* Spain: The Canary Islands and parts of Andalusia in Spain are the main areas where ceceo is still spoken.

Important Note: While the majority of Spanish speakers use seseo, there are some regional variations within the pronunciation of the "s" sound. For example, in some areas of Spain, the "s" might be pronounced with a slightly more "lisping" sound.