SWiktionary 原文S1词源 1/ɛs/释义字母letter1The nineteenth letter of the English alphabet, called ess and written in the Latin script.同族词派生词 19S-side·S-tier·curcumin S·S-plasty·S/N ratio·binor-S·S-curve·S rank·S-turnS2词源 2词源说明Abbreviation.释义名词noun1Initialism of south.2Initialism of season (group of episodes of a series).3(usually clothing) Initialism of small (the manufactured size or an item of that size).4S3词源 3词源说明From the first letter of set and of stage, two fundamental concepts of the theory.释义专有名词proper noun1(set theory) An axiomatic set theory, developed by logician George Boolos, in which several of the axioms of ZF are derivable as