2. In this Act the expressions following have the following meanings:—
“Directors” means (1) in the case of a society or branch whose property is vested in trustees, the trustees for the time being; (3) in any other case, the directing authority by whatever name it may be called :
“Probate” and “letters of administration” for Scotland mean confirmation :
. . . . . . . . . . . .
“Society” includes a registered trade union :
“Office” means in the case of a society registered under . . the Trade Union Acts, the registered office of such society.