What is the correct abbreviation for barbecue?

There are several abbreviations for barbecue, but the most common and widely accepted are:

* BBQ - This is the most frequently used abbreviation and is universally understood.

* Barbecue - This is also widely accepted and can be used in more formal settings.

* 'Que - This is a more informal abbreviation and is typically used in the Southern United States.

There are also other, less common abbreviations, such as BQ, but these are not widely used.