Myth of Er: Is aught a number? Ok

Aught-noun. Eight followed by three aughts represents the number 8,000: zero; nothing, null. Slang goose egg, zip,
aught pronoun. "For aught I know, she's gone, and four aught I care, she she can stay:all.
Usage note-Aught meaning all-is never used nowadays- except as in the sentence above; Until our grandparents' generation aught was also used as a literary word meaning " anything at all" as in the following line by Tennyson: " Unfaith in aught is want of faith in all."

Word origin:  Aught comes from the phrase a naught, which people began to pronounce as " an aught."