sigmoid functionsigmoidalsigmoidal foldsigmoidal shapesigmoidcolectomysigmoidectomysigmoidoscopesigmoidoscopysigmoidostomysigmturesigmund freudsignsign a passsign a treatysign agreementssign an agreementsign an agreement contract treaty etcsign an appealsign autographsign autographssign awaysign conventionsign forsign insign in with googlesign into lawsign it on the bottomsign languagesign languagessign makersign makingsign manualsign me upsign of lifesign of recognitionsign of the timessign of threesign offsign off mentorsign off onsign off on sthsign onsign on the dotted linesign on withsign one the dotted linesign one's praisessign oneselfsign outsign outographssign over
