legal Definition of floor 1 a: a main level space (as in a stock exchange or legislative chamber) distinguished from a platform or gallery b: members of an assembly
Learner's definition of BIRTHDAY. [count]. 1. : the day when someone was born or the anniversary of that day. â often used before another noun.
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. 4. an inscription on a coin, letter, etc, stating when it was made or written. 5. a. an appointment for a particular time, esp with a person to whom one is sexually or romantically attached: she has a dinner date.