hollo exclamation 2noun 1verb 1forms 4 exclamation2 •(old-fashioned) Hey, helloAnd then to Apollo hollo, trees, hollo. — 1609 •(UK, old-fashioned) hello (expressing puzzlement or discovery)‘Hollo!’ he cried. ‘The blind’s down!’ I had noticed, when we were outside, that the blind was down at the front room window. — 1897 noun1 •A cry of "hollo"And a good south wind sprung up behind; The Albatross did follow, And every day, for food or play, Came to the mariners' hollo! — 1798 verb1 •To cry "hollo"And Tom made another loutish salute, and cut the conference short by turning off the path and beginning to hollo after some trespassing cattle. — 1899 formsholloed · holloing · holloes · hollos