(1) In this Act the expressions "bank" and "banker" means any of the following: (a) the Bank of Ireland, the Hibernian Bank, Limited, the Munster & Leinster Bank, Limited, the National Bank of Ireland Limited, the National City Bank, Limited, the Northern Bank, Limited, the Provincial Bank of Ireland, Limited, the Royal Bank of Ireland, Limited, and the Ulster Bank, Limited; (b) any other person who is the holder of a licence issued under section 47 of the Central Bank Act, 1942 (No. 22 of 1942); (c) the Post Office Savings Bank; (d) a trustee savings bank within the meaning of the Trustee Savings Banks Act, 1989; (e) a building society (within the meaning of the Building Societies Act, 1989);