Type: [[Greek]], [[Letter]], [[Lowercase]], [[Psi]] Type: [[Greek]], [[Letter]], [[With]], [[Sound]], [[Of]], [[Ps]] Type: [[Strange]], [[Letter]], [[Not]], [[From]], [[Original]], [[Jew]], [[Alphabet]] Type: [[Greek]], [[Letter]], [[Meaning]], [[Mind]] Type: [[Greek]], [[Letter]], [[Meaning]], [[Quantum]], [[Wave]], [[Function]]