τὸ ἓν καὶ τὸ ὂν πολλαχῶς λέγεται → the term being and the term one are used in many ways, one and being have various meanings, one and being have many senses
spy: P. and V. κατάσκοπος, ὁ.
be an eavesdropper, v.: P. ὠτακουστεῖν.