Definitions

1. pronoun

the object of a verb or preposition, used as the archaic second-person singular; you

“Thou art my friend.”

2. verb

to perceive by the eye; to see

“Thou shalt see the glory of God.”

3. noun

a verb or other grammatical unit that is used as the base form of a verb, especially one that is not in the infinitive form

“Thou is the base form of the verb be.”