In sections 228 to 278 of this Act, unless the context otherwise requires—
" appellant " includes a person who has been convicted and desires to appeal under this Part of this Act;
" sentence " includes any order of the High Court made on conviction with reference to the person convicted or his wife or children, and any recommendation of the High Court as to the making of a deportation order in the case of a person convicted and the power of the High Court to pass a sentence includes a power to make any such order of the court or recommendation, and a recommendation so made by the High Court shall have the same effect for the purposes of Articles 20 and 21 of the Aliens Order 1953 as the certificate and recommendation of the convicting court.