r, yawr, yohr; unstressed yer]
| 1. | (a form of the possessive case of you used as an attributive adjective): Your jacket is in that closet. I like your idea. Compare yours. |
| 2. | one's (used to indicate that one belonging to oneself or to any person): The consulate is your best source of information. As you go down the hill, the library is on your left. |
| 3. | (used informally to indicate all members of a group, occupation, etc., or things of a particular type): Take your factory worker, for instance. Your power brakes don't need that much servicing. |
ou]
,pronoun, singular, nominative thou; possessive thy or thine; objective thee; plural, nominative you or ye; possessive your or yours; objective you or ye; verb | 1. | Archaic (except in some elevated or ecclesiastical prose). the personal pronoun of the second person singular in the nominative case (used to denote the person or thing addressed): Thou shalt not kill. |
| 2. | (used by the Friends) a familiar form of address of the second person singular. |
| 3. | to address as “thou.” |
| 4. | to use “thou” in discourse. |

pronoun, possessive your or yours, objective you, plural you; noun, plural yous.| 1. | the pronoun of the second person singular or plural, used of the person or persons being addressed, in the nominative or objective case: You are the highest bidder. It is you who are to blame. We can't help you. This package came for you. Did she give you the book? |
| 2. | one; anyone; people in general: a tiny animal you can't even see. |
| 3. | (used in apposition with the subject of a sentence, sometimes repeated for emphasis following the subject): You children pay attention. You rascal, you! |
| 4. | Informal. (used in place of the pronoun your before a gerund): There's no sense in you getting upset. |
| 5. | Archaic.
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| 6. | something or someone closely identified with or resembling the person addressed: Don't buy the bright red shirt—it just isn't you. It was like seeing another you. |
| 7. | the nature or character of the person addressed: Try to discover the hidden you. |
your (yŏŏr, yôr, yōr; yər when unstressed) adj. The possessive form of you.
[Middle English, from Old English ēower, genitive of gē, ye; see you.] |
thou
[θɑʊ]
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"Children learn from the slaves some odd phrases ... as ... will you all do this? for, will one of you do this?" ["Arthur Singleton" (Henry C. Knight), "Letters from the South and West," 1824]
"Avaunt, caitiff, dost thou thou me! I am come of good kin, I tell thee!"["Hickscorner," c.1530]A brief history of the second person pronoun in Eng. can be found here.