Meaning of sunny side

sun'ny side"

Pronunciation: [key]
  1. the part upon which sunlight falls: the sunny side of the house.
  2. a pleasant or hopeful aspect or part: the sunny side of life.
  3. some age less than one specified: You're still on the sunny side of thirty.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.