(1):

(n.) A loud burst of voice or voices; a vehement and sudden outcry, especially of a multitudes expressing joy, triumph, exultation, or animated courage.

(2):

(v. i.) To entertain with refreshments or the like gratuitously; to treat.

(3):

(v. t.) To treat with shouts or clamor.

(4):

(n.) A gratuitous entertainment, with refreshments or the like; a treat.

(5):

(v. i.) To utter a sudden and loud outcry, as in joy, triumph, or exultation, or to attract attention, to animate soldiers, etc.

(6):

(v. t.) To utter with a shout; to cry; - sometimes with out; as, to shout, or to shout out, a man's name.

(7):

(v. t.) To treat (one) to something; also, to give (something) by way of treating.