Commodity interest. This term means:
(1) Any contract for the purchase or sale of a commodity for future delivery;
(2) Any contract, agreement or transaction subject to a Commission regulation under section 4c or 19 of the Act;
(3) Any contract, agreement or transaction subject to Commission jurisdiction under section 2(c)(2) of the Act; and
(4) Any swap as defined in the Act, by the Commission, or jointly by the Commission and the Securities and Exchange Commission.
17 CFR § 1.3
Words used in the singular form in the rules and regulations in this chapter shall be deemed to import the plural and vice versa, as the context may require. The following terms, as used in the Commodity Exchange Act, or in the rules and regulations in this chapter, shall have the meanings hereby assigned to them, unless the context otherwise requires: