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  2. English interrogative words - Wikipedia

    en.wikipedia.org/wiki/English_interrogative_words

    Those associated with closed-ended questions are whether and if. [a] The main role of these words is to mark a clause as interrogative. For example, How did you do it? is marked as an interrogative clause by the presence of how, and in I wonder whether it's true, whether marks the subordinate clause whether it's true as interrogative.

  3. Synonym - Wikipedia

    en.wikipedia.org/wiki/Synonym

    A synonym is a word, morpheme, or phrase that means precisely or nearly the same as another word, morpheme, or phrase in a given language. [2] For example, in the English language , the words begin , start , commence , and initiate are all synonyms of one another: they are synonymous .

  4. Interrogative word - Wikipedia

    en.wikipedia.org/wiki/Interrogative_word

    An interrogative word or question word is a function word used to ask a question, such as what, which, when, where, who, whom, whose, why, whether and how. They are sometimes called wh-words , because in English most of them start with wh- (compare Five Ws ).

  5. WordNet - Wikipedia

    en.wikipedia.org/wiki/WordNet

    WordNet is a lexical database of semantic relations between words that links words into semantic relations including synonyms, hyponyms, and meronyms. The synonyms are grouped into synsets with short definitions and usage examples. It can thus be seen as a combination and extension of a dictionary and thesaurus.

  6. If and only if - Wikipedia

    en.wikipedia.org/wiki/If_and_only_if

    The result is that the truth of either one of the connected statements requires the truth of the other (i.e. either both statements are true, or both are false), though it is controversial whether the connective thus defined is properly rendered by the English "if and only if"—with its pre-existing meaning.

  7. Yes and no - Wikipedia

    en.wikipedia.org/wiki/Yes_and_no

    Yes and no, or similar word pairs, are expressions of the affirmative and the negative, respectively, in several languages, including English.Some languages make a distinction between answers to affirmative versus negative questions and may have three-form or four-form systems.

  8. Uncertainty - Wikipedia

    en.wikipedia.org/wiki/Uncertainty

    For example, if it is unknown whether or not it will rain tomorrow, then there is a state of uncertainty. If probabilities are applied to the possible outcomes using weather forecasts or even just a calibrated probability assessment, the uncertainty has been quantified. Suppose it is quantified as a 90% chance of sunshine.

  9. Y'all - Wikipedia

    en.wikipedia.org/wiki/Y'all

    Y'all is a contraction of you all.The spelling you-all in second-person plural pronoun usage was first recorded in 1824. [4] [5] The earliest two attestations with the actual spelling y'all are from 1856, [6] and in the Southern Literary Messenger (published in Richmond, Virginia) in 1858. [7]