Translators have rendered doxa as "opinion", "belief", and "judgment", among other renderings. All three translations are subject to criticism. We analyze doxa as prompted by a present perception or by a past perception registered and resuscitated. There is also a doxa prompted by a Form, or complex of Forms.
Rosenmeyer, Thomas G., "Judgment and Thought in the Theaetetus" (1959). The Society for Ancient Greek Philosophy Newsletter. 67.