Chambers 20th Century Dictionary(0.00 / 0 votes)Rate this definition: Bestow. be-stÅâ², v.t. to stow, place, or put by: to give or confer: to accommodate with quarters: to apply (with on and upon): (refl., Shak.) to acquit one's self.âns. Bestowâ²al, act of bestowing: disposal; Bestowâ²er; Bestowâ²ment.