A formula is a plan that is invented in order to deal with a particular problem.

A formula for a particular situation, usually a good one, is a course of action or a combination of actions that is certain or likely to result in that situation.

A formula is a group of letters, numbers, or other symbols which represents a scientific or mathematical rule.

In science, the formula for a substance is a list of the amounts of various substances which make up that substance, or an indication of the atoms that it is composed of.

Formula is used followed by a number to indicate a particular type of racing car or something relating to that type of car.

Formula is a powder which you mix with water to make artificial milk for babies.