verb intransitive, verb transitiveWord forms: halˈlooed or halˈlooing
to shout or call out in order to attract the attention of (a person)
to urge on (hounds) by shouting or calling
(a shout or call) used esp. to attract a person's attention or to urge on hounds
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'halloo'ME halowen < interj. halou: prob. also < OFr halloer, to follow after with much noise