Crossword clues for Sign up with 4 letters:SIGNCrossroads feature.SIGNWALK, for one.SIGNRegister, with "up"SIGNPut one's name on the line?SIGNYIELD, for oneSIGNTHINK, for one.SIGNSay "I love you" by extending the thumb, index finger, and pinky, e.g.SIGNPut one's name down onSIGNCoach's gesturingSIGNHighway readingSIGNRoadside markerSIGNSource of Interstate infoSIGNProvide an endorsementSIGNNo Exit, for example.SIGNThis word follows the last word of 18A, 23A, 50A, and 56ASIGNWhat's your ___?SIGNA protester might carry oneSIGNAuthorizeSIGNEndorseSIGNSpeak with one's handsSIGNExit indicatorSIGNHighway exit featureSIGNWhat a coach gives a base runnerSIGNAries or ScorpioSIGNYIELD RIGHT OF WAY, for oneSIGNRoadside referenceSIGNAstrological concernSIGNOmen, for instanceSIGNHire, as a ballplayer.SIGNWhat a picket carries.SIGNOmenSIGNAgree to a dealSIGNIndicationSIGN+ or -SIGNDating criterion, for someSIGNTalk with your hands, in a waySIGNTraffic indicatorSIGNStore window hangingSIGNWith 62-Down, some account verificationsSIGNOne might say "stop"SIGNPortentSIGNSagittarius or CapricornSIGNSpeak with the handsSIGNInkSIGN+ or -, e.g.SIGNWord after high or roadSIGNTake the offerSIGNSeal the dealSIGNStop or "Yield"SIGNEngage.