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.
(deÉªt) n. 1. a specified day of the month: today's date is October 27. 2. the particular day or year of an event: the date of the Norman Conquest was 1066. 3. (plural) the years of a person's birth and death or of the beginning and end of an event or period.