1 This helps keep your upper back straight while having a slight arch in your lower back. 2  Slowly lift by straightening your hips and knees (not your back). Keep your back straight, and don't twist as you lift.  Hold the load as close to your body as possible, at the level of your belly button.
Definition of birthday. 1  1a : the day of a person's birthb : a day of origin. 2  2 : an anniversary of a birth her 21st birthday.
A celebration is a special enjoyable event that people organize because something pleasant has happened or because it is someone's birthday or anniversary. I can tell you, there was a celebration in our house that night. ...his eightieth birthday celebrations. Synonyms: party, festival, gala, jubilee More Synonyms of celebration