Tas \Tas\, n. [F.] A heap. [Obs.] "The tas of bodies slain." --Chaucer. [1913 Webster]
Tas \Tas\, v. t. To tassel. [Obs.] "A purse of leather tassed with silk." --Chaucer. [1913 Webster]
TAS Tag Abuse Syndrome (SGML, HTML, slang)