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  1. The meaning of SIGN is a motion or gesture by which a thought is expressed or a command or wish made known. How to use sign in a sentence. Synonym Discussion of Sign.

  2. The plus sign (+) and the minus sign (−) are mathematical symbols used to denote positive and negative functions, respectively. In addition, + represents the operation of addition, which results in a sum, while − represents subtraction, resulting in a difference.

  3. noun. : the sign ± used to indicate a quantity (such as 2 in "the square root of 4 is ±2") taking on both an algebraically positive value and its negative and to indicate a plus or minus quantity (such as 4 in "the population age was 30 ± 4 years") called also plus/minus symbol.

  4. Nov 15, 2020 · The and sign, or ampersand, is a form of shorthand and shouldn’t be used when writing a formal document like a school assignment, an official letter or email or any kind of report. However, there are places when it is acceptable to use an ampersand.

  5. The ampersand ( & ), also referred to as the and sign, is a logogram (a diagram standing for a word). It represents the Latin conjunction et, which means and. The ampersand symbol is not only a logogram, but also a ligature.

  6. The sign function or signum function extracts the sign of a real number, by mapping the set of real numbers to the set of the three reals {,,}. It can be defined as follows:

  7. en.wikipedia.org › wiki › At_signAt sign - Wikipedia

    The at sign, @, is an accounting and invoice abbreviation meaning "at a rate of" (e.g. 7 widgets @ £2 per widget = £14), now seen more widely in email addresses and social media platform handles. It is normally read aloud as "at" and is also commonly called the at symbol , commercial at , or address sign .

  8. sign noun [C] (SHOWING) B1. something showing that something else exists or might happen or exist in the future: sign of His inability to handle the situation is a sure sign of weakness. [ + that ] The fact that he's eating more is a sign that he's feeling better.

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  10. At sign, symbol (@) used primarily to direct electronic communication to specified entities, most notably in email addresses and social media handles. Before the late 20th century its primary use was commercial, where it signified “at the rate of.”

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