1. (pron.)that (used to indicate a person or thing as pointed out or present, mentioned before, supposed to be understood, or by way of emphasis): That is her mother.
2. that (used to indicate one of two or more persons or things already mentioned, referring to the one moreremote in place, time, or thought; This is my sister and that's my cousin.
3. that (used to indicate one of two or more persons or things already mentioned, implying a contrast or contradistinction; This suit fits better than that.
4. that (used as the subject or object of a relative clause, esp. one defining or restricting the antecedent, sometimes replaceable by who, whom, or which): the horse that he bought.
6. that (used in various special or elliptical constructions): fool that he is.
7. (adj.)that (used to indicate a person, place, thing, or degree as indicated, mentioned before, present, or as well-known or characteristic): That woman is her mother.
8. that (used to indicate the moreremote in time, place, or thought of two persons or things already mentioned; This room is his and that one is mine.
9. that (used to imply mere contradistinction; not this house, but that one.
10. (adv.)that (used with adjectives and adverbs of quantity or extent) to the extent or degree indicated: Don't take that much.
11. that to a greatextent or degree: It's not that important.
12. that Dial. (used to modify an adjective or another adverb) to such an extent: He was that weak he could hardly stand.
1. (determiner)that indicates sb or sth which is farther away than others Do you like this one or that one?; Those are nice.; Who's that girl?
2. that indicates sb or sth which has already been mentioned At that moment, there was a loud bang.; I never sent that card.
3. (pronoun)that indicates sb or sth which is farther away than others That's a beautiful car.; I liked the big one better than those.; Who's that, over there?
4. that indicates sth which has already been mentioned Try again. That's better.; The first Indiana Jones - now that was a good movie.
5. that used to giveextrainformation about a noun or pronoun; = which, who the dog that bit me; the vacation that we took together
6. that that's it indicates sb is doing sth well or correctly That's it - now push with the other foot.
7. that indicates sth ends Just two more paragraphs to write, and that's it.
8. that indicates you are not willing to deal with a bad situation anymore That's it! I'm leaving.
9. that indicates sb has the reason or answer for sth That's it! I know what's wrong.; Are you embarrassed? Is that it?
10. that that's that indicates you refuse to do or say more You will not go out tonight, and that's that.
11. (conjunction)that used to add information or description after some verbs, adjectives, and nouns The police believe that she has been kidnapped.; It seems strange that he didn't call.; That's the TV that Dad wanted to buy.
12. (adverb)that emphasizes adjectives I didn't know he was that tall.; people who are that unlucky; He's not all that good-looking.
13. that not (all) that used to show sb with your hands how big sth is It was about that long and that wide.
Definition of 'That'
Webster Dictionary
1. That as a demonstrativepronoun (pl. Those), that usually points out, or refers to, a person or thing previously mentioned, or supposed to be understood. That, as a demonstrative, may precede the noun to which it refers; as, that which he has said is true; those in the basket are good apples
Sense: used to indicate a person, thing etc spoken of before, not close to the speaker, already known to the speaker and listener etc Don't take this book; – take that one; At that time, I was living in Italy; When are you going to return those books?
Definitions of That 
Afrikaans: daardie
Arabic: ذلكَ
Bulgarian: онзи
Brazilian: aquele
Czech: ten (to), tamten, tenhle
German: jene/-r/-s
Danish: den; det; disse
Greek: εκείνος, αυτός εκεί
Spanish: ese, esa, esos, esas; aqu
Estonian: see, see seal, need
Farsi: آن
Finnish: tuo, nuo
French: ce, cet, cette, ces (là)
Hebrew: זֶה, זאת, הַהוּא, הַהִיא
Hindi: जो, जिसे
Croatian: taj, ta
Hungarian: ez, az; ezt, azt stb.
Indonesian: itu
Icelandic: sá, sú, það; þessi, þetta
Italian: questo, questa, questi, q
Japanese: その
Korean: (언급된) 그(것들)의
Lithuanian: tas, anas
Latvian: tas; tā
Malay: itu
Dutch: die, dat
Norwegian: den, det, de
Polish: tamten
Portuguese: aquele
Romanian: acel, acea, acei, acele
Russian: этот; тот
Slovak: ten(to), tamten
Slovenian: ta
Serbian: taj
Swedish: den (det, de) där, denna,
Thai: (คนหรือสิ่งของ) นั้น (ใช้
Turkish: o,şu
Taiwanese: 那(個)
Ukrainian: той, та, те; цей, ця, це
Urdu: اُس، دور کي شئ
Vietnamese: ấy, đó, kia
Chinese: （指较远的人或事物）那，那个
