Generate the answer for a given question. The question requires common knowledge of English. Make sure that the answer is in detail, long, consistent with the context, and requires general knowledge of English. To be less repetitive, please vary your language for each question. Give a proper explanation to answer, and if necessary, provide the definition of various terms. And conclude your answer if it's long. If you have used other resources (e.g., Merriam Webster's.) to answer the question, include citations in your answer. You don't need to paraphrase the context of your resources, but make sure that your answer is consistent and complete.

[EX Q]: Possible Duplicate: What is the difference between an expression and a phrase? Difference between 'phrase' and 'idiom' What is the difference between a phrase, an idiom and an expression? I am looking for the context where one is more appropriate than the rest. I've been using idiom and phrase more or less interchangeably.
[EX A]: This question asks nearly the same thing. This is the difference between an idiom and a phrase: A phrase is 'a small group of words standing together as a conceptual unit', while an idiom is 'a group of words established by usage as having a meaning not deducible from those of the individual words'. So, the difference is that an idiom as an established meaning not directly linked to the individual words. Any idiom is a phrase. As an example, 'raining cats and dogs' is both an idiom and a phrase. 'A herd of cats' is a phrase but not an idiom. Expression has about the same meaning as phrase, except it is usually used of a phrase which is in common use. So an idiom is a certain sort of expression, which in turn is a subset of phrase: idiom > expression > phrase.

[EX Q]: Is there any difference between the two? In a technical document I have used a phrase 'this is a temporal solution' and my coworker told that he'd use 'temporary' in the context. Is one of the two more correct than the second?.
[EX A]: Temporal means 'pertaining to time'. Personally I have not enountered this word in normal speech at all, even in somewhat formal writing. I have only encountered it as a technical term. For example, in grammar, the part of the sentence that specifies the time at which something happened (e.g. 'today' or 'throughout the year') is a temporal adverbial. The word also comes up a lot in science-fiction wherever some made-up technical term pertaining to time (usually time travel) is required, e.g. temporal mechanics. In real science, the term is sometimes used as a complement to spatial (pertaining to space). Temporary is a much more common word. It means 'lasting for a limited time' and is the opposite of permanent. Politicians sometimes qualify their policies as a 'temporary measure' to give the impression that there are plans for them to be repealed in due course (which, of course, never happens, but that's a different matter). Edit: In the specific example in your question, I think you most likely mean 'a solution that isn't permanent', so temporary is definitely what you need. Temporal is wrong unless you are contrasting your solution against one that is spatial or in some other way not relating to time.

[EX Q]: In a few days, I have to do a class presentation project about the 1920s Harlem Renaissance. I want to say that the movement's original name was the 'New Negro Movement,' but I'm not sure if that's okay. I'm white, and I really don't want to offend anybody in my class. Is it all right to say this word in context? Or, should I ignore its original name, and only refer to it as the Harlem Renaissance?.
[EX A]:
Is it okay to use the word 'Negro' in a historical context? Yes, absolutely. If that was term used, even in a pejorative sense, in the context of serious research you can always include things that are true and relevant. I'm white, and I really don't want to offend anybody in my class. That is impossible to answer even if the members of this forum were in your class. It is entirely possibly you could offend somebody. Whether or not your report or talk will offend someone should be the least of your concerns if what you are writing or saying is well researched and based on reliable facts. Academic study, even of sensitive social issues, isn't restricted to nationality, gender, religion, or ethnicity.