Crossword clues for Expresses, informally 3 letters:SEZExpresses, informallySTJOEMissouri city that was one end of the Pony Express, informallyTHANXInformal expression of gratitudeWELPInformal expression of resignationSTJOEMOPony Express terminus, informallyCOULDAInformal word in some expressions of regretSTJOEPony Express's Missouri terminus, informally