To modify, limit, restrict or moderate something; especially to add conditions or requirements for an assertion to be true.
To certify or license someone for something.
To throw and catch each object at least twice.
To compete successfully in some stage of a competition and become eligible for the next stage.
To make someone, or to become competent or eligible for some position or task.
To give individual quality to; to modulate; to vary; to regulate.
To describe or characterize something by listing its qualities.
An instance of throwing and catching each prop at least twice.
To state explicitly, or in detail, or as a condition.
To bring about a specific result.
To include in a specification.