Meaning of strengthen

strength•en

Pronunciation: (strengk'thun, streng'-, stren'-), [key]
— v.t.
  1. to make stronger; give strength to.
  2. to change (a speech sound) to an articulation requiring more effort, as from fricative to stop or nongeminate to geminate.
—v.i.
  1. to gain strength; grow stronger.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: