(a) In the language of any marketing agreement or order, the present tense shall include the past and future tenses, and the future tense shall include the present. The masculine gender shall include the feminine and neuter. The singular number includes the plural and vice versa.

(b) County, town, city or village shall mean a municipal corporation of the State of New York, and the inhabitants within its boundaries.

(c) The word sell includes offer for sale, expose for sale, have in possession for sale, exchange, barter or trade.

(d) Marketing area shall mean any county, city, town or village or two or more counties, cities, towns or villages or any combination or parts thereof designated by the commissioner.