hollo

from WordNet (r) 3.0 (2006)

hollo
    n 1: a very loud utterance (like the sound of an animal); "his
         bellow filled the hallway" [syn: {bellow}, {bellowing},
         {holla}, {holler}, {hollering}, {hollo}, {holloa}, {roar},
         {roaring}, {yowl}]
    v 1: encourage somebody by crying hollo
    2: cry hollo
    3: utter a sudden loud cry; "she cried with pain when the doctor
       inserted the needle"; "I yelled to her from the window but
       she couldn't hear me" [syn: {shout}, {shout out}, {cry},
       {call}, {yell}, {scream}, {holler}, {hollo}, {squall}]

from The Collaborative International Dictionary of English v.0.48

Hollo \Hol*lo"\, interj. & n. [See {Halloo}, and cf. {Holla}.]
   Ho there; stop; attend; hence, a loud cry or a call to
   attract attention; a halloo.
   [1913 Webster]

         And every day, for food or play,
         Came to the mariner's hollo.             --Coleridge.
   [1913 Webster]

from The Collaborative International Dictionary of English v.0.48

Hollo \Hol"lo\, v. i. [imp. & p. p. {Holloed}; p. pr. & vb. n.
   {Holloing}.] [See {Hollo}, interj., and cf. {Halloo}.]
   To call out or exclaim; to halloo.
   [1913 Webster]