As nouns the difference between tavs and tas

is that tavs is plural of tav while tas is an alternative spelling of lang=en.

As an acronym TAS is

tool-assisted speedrun.

As an abbreviation TAS is

abbreviation of lang=en|Tasmania.

As an adjective TAS is

used to describe any tool-assisted project.

As a verb TAS is

to make, create, or contribute to a tool-assisted speedrun.