rho

("rho" is also a: user.)

Greek alphabet	ρ	rhotic	spherical coordinates
non-rhotic	Breathing marks in Greek	ISO 8859-1	Greeks
Chi Rho	Where have all the poets gone?	Product moment correlation coefficient	Row, row, row your boat
Negative Double	Pollard rho	Res	pi
pion	Yen	PETA	sigma
who	Carbon	spirit	ASCII art