That: Can be used to

That can be used to introduce subordinate clauses, but in most cases can just as easily be omitted: one can say either “he told me that it’s a good read” (in which case the second clause is a “ that clause”) or “he told me it’s a good read” (in which case the second clause is a “bare clause”). Generally speaking, the omission of that imparts an informal or conversational feel. In a few such patterns, that is mandatory; for example, in the archaic sense of "in order that ... PSY's seventh studio-length album "Chiljip PSY-da" comes three years and five months after his sixth album, "PSY 6-gap," which included the global sensation "Gangnam Style." The two lead tracks of ... THAT meaning: 1 : used to indicate which person, thing, fact, or idea is being shown, pointed to, or mentioned; 2 : used to refer to a time, action, or event that was just mentioned That can be used as an adjective and a pronoun. It is the singular form of those. Compare: Look at that man over there. Look at those men over there. As an adjective that can refer to either people or things. This photograph is much better than that photograph. That boy says that he is tired. When that is used as a pronoun without a noun, it can only refer to things. Compare: Look at that photograph. OR Look at that . Ask that man to come here. BUT NOT Ask that to come here. However, that can ...