21. The following words and expressions in this Act shall have the several meanings hereby assigned to them, unless there be something either in the subject or context repugnant to such construction, (that is to say,)
Words importing the singular number only shall include the plural, and words importing the plural number only shall include the singular.
Words importing the masculine gender only shall include females.
The word land shall extend to tenements and hereditaments of any tenure, and all houses, buildings, walls, or appurtenances thereupon, as well as land.
The expression party or parties interested in the land shall be understood to mean all parties interested in the land either for life or for years, or in remainder, reversion, or succession, and all trustees, cestui que trusts, mortgagees, incumbrancers, leaseholders, or tenants, not being tenants by the month or at will of such land.