Interjection

1. (A greeting said when meeting somebody for the first time in the morning.)
2. (Said to someone who has just awakened (irrespective of the time of day).)
3. (Said to someone who has come to a belated realization.)
4. (A greeting said when parting from someone in the morning.)

Noun

1. An exercise performed by bending forward at the waist and then returning to a standing posture, while bearing a barbell across the shoulders.