floor

Definition 1

Lowermost preset limit of a range, or the maximum limit below which a quantity (such as an interest rate, inventory level, selling price) is not allowed to fall under a rule, or the terms of an agreement or contract. And passing which a penalty or remedial measure is triggered. Opposite of ceiling.

Definition 2

Trading area of an exchange.

Definition 3

Alternative term to story, used as a unit of building height. In UK, the floor above the street level floor (ground floor) is called the first floor (or second story). In US, the numbering of floors is the same as the numbering of stories.