Halloo /(hăl*lo͡o")/

1. A loud exclamation; a call to invite attention or to incite a person or an animal; a shout.

   List! List! I hear Some far off halloo break the silent air.

imp. & p. p. Hallooed; p. pr. & vb. n. Hallooing

1. To cry out; to exclaim with a loud voice; to call to a person, as by the word halloo.

   Country folks hallooed and hooted after me.

1. To encourage with shouts.

   Old John hallooes his hounds again.

2. To chase with shouts or outcries.

   If I fly . . . Halloo me like a hare.

3. To call or shout to; to hail.

1. An exclamation to call attention or to encourage one. Now mostly replaced by hello.