Meaning

• A whole number that can be divided by another number with no remainder.

  "14, 21 and 70 are multiples of 7"

• Price-earnings ratio.

• One of a set of the same thing; a duplicate.

• A single individual who has multiple personalities.

• One of a set of siblings produced by a multiple birth.

• A chain store.

• A discovery resulting from the work of many people throughout history, not merely the work of the person who makes the final connection.

Meaning

• More than one (followed by plural).

  "My Swiss Army knife has multiple blades."

• Having more than one element, part, component, or function, having more than one instance, occurring more than once, usually contrary to expectations (can be followed by a singular).

  "It was a multiple pregnancy: the woman had triplets."