- penny - a fractional monetary unit of Ireland and the United Kingdom; equal to one hundredth of a pound
--1 is a kind of fractional monetary unit, subunit
--1 is a part ofIrish pound, Irish punt, punt, pound; British pound, pound, pound sterling, quid - penny, cent, centime - a coin worth one-hundredth of the value of the basic unit
--2 is a kind of coin
--2 has particulars: copper; new penny - penny, cent, centime - a coin worth one-hundredth of the value of the basic unit