All expressions used in this Agreement, which are defined in the Labour Relations Act No. 66 of 1995, as amended, and in the Main Collective Agreement, have the meanings assigned to them in that Act and those Collective Agreements; and any reference to an Act includes any amendments to that Act, and unless the contrary intention appears, words importing the singular or plural include the other, words importing the masculine gender include the female and vice versa; headings are for ease of reference only; further, unless inconsistent with the context: