Main Entry:

¹s

Pronunciation:

\ˈes\

Function:

noun

Inflected Form(s):

plural s's or ss \ˈe-səz\

Usage:

often capitalized often attributive

Date:

before 12th century

1 a: the 19th letter of the English alphabet b: a graphic representation of this letter c: a speech counterpart of orthographic s2: a graphic device for reproducing the letter s3: one designated s especially as the 19th in order or class4 [abbreviation for satisfactory] a: a grade rating a student's work as satisfactory b: one graded or rated with an S5: something shaped like the letter S