yah /jʌː/adverb 1exclamation 1noun 1forms 1 adverb1 •Yes.Yah, we did go along but it turned out the wedding was a load of nonsense. exclamation1 •An expression uttered to encourage a horse to run faster. noun1 •(UK, informal) An upper-class person, especially a Sloane Ranger. formsyahs