<p><strong>pronoun</strong></p><ul><li>those: (used to indicate a person, thing, idea, state, event, time, remark, etc., as pointed out or present, mentioned before, supposed to be understood, or by way of emphasis): That is her mother. After that we saw each other.</li><li>(used to indicate one of two or more persons, things, etc., already mentioned, referring to the one more remote in place, time, or thought; opposed to this): This is my sister and that's my cousin.</li><li>(used to indicate one of two or more persons, things, etc., already mentioned, implying a contrast or contradistinction; opposed to this): This suit fits better than that.</li><li>(used as the subject or object of a relative clause, especially one defining or restricting the antecedent, sometimes replaceable by who, whom, or which): the horse that he bought.</li><li>(used as the object of a preposition, with the preposition standing at the end of a relative clause): the farm that I spoke of.</li><li>(used in various special or elliptical constructions): fool that he is.</li></ul><p><strong>adjective</strong></p><ul><li>those: (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. Those little mannerisms of hers make me sick.</li><li>(used to indicate the more remote in time, place, or thought of two persons, things, etc., already mentioned; opposed to this): This room is his and that one is mine.</li><li>(used to imply mere contradistinction; opposed to this): not this house, but that one.</li></ul><p><strong>adverb</strong></p><ul><li>(used with adjectives and adverbs of quantity or extent) to the extent or degree indicated: that much; The fish was that big.</li><li>to a great extent or degree; very: It's not that important.</li><li>Dialect. (used to modify an adjective or another adverb) to such an extent: He was that weak he could hardly stand.</li></ul><p><strong>conjunction</strong></p><ul><li>(used to introduce a subordinate clause as the subject or object of the principal verb or as the necessary complement to a statement made, or a clause expressing cause or reason, purpose or aim, result or consequence, etc.): I'm sure that you'll like it. That he will come is certain. Hold it up so that everyone can see it.</li><li>(used elliptically to introduce an exclamation expressing desire, a wish, surprise, indignation, or other strong feeling): Oh, that I had never been born!</li></ul>