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.
anniversary (plural anniversaries) 1  Of a significant event, a day that is an exact number of years (to the day) since the event occurred. ( 2 loosely) A day subsequent in time to a given event by some (especially significant) factor other than a year (especially as prefixed by the amount of time in question).