Definition of square noun from the Oxford Advanced Learner's Dictionary

      

    square

     noun
    noun
    BrE BrE//skweə(r)//
     
    ; NAmE NAmE//skwer//
     
    House location, Mathematical terminology
     
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    shape
  1. 1   [countable] a shape with four straight sides of equal length and four angles of 90°; a piece of something that has this shape First break the chocolate into squares. The floor was tiled in squares of grey and white marble. see also set square, T-square
  2. in town
  3. 2  [countable] an open area in a town, usually with four sides, surrounded by buildings The hotel is just off the main square. the market/town/village square See related entries: House location
  4. 3Square [singular] (abbreviation Sq.) (used in addresses) They live at 95 Russell Square.
  5. mathematics
  6. 4 [countable] the number obtained when you multiply a number by itself The square of 7 is 49. See related entries: Mathematical terminology
  7. boring person
  8. 5[countable] (informal, disapproving) a person who is considered to be boring, for example because they are old-fashioned or because they work too hard at school
  9. Word Origin Middle English: shortening of Old French esquare (noun), esquarre (past participle, used as an adjective), esquarrer (verb), based on Latin quadra ‘square’.Extra examples A square of light shone from the skylight. Cut the sandwiches into neat squares. The crowd filled the square. crowds in the market square the east side of the square The hotel is just off the main square. The next day, a large crowd gathered in the market square.Idioms a return to the situation you were in at the beginning of a project, task, etc., because you have made no real progress If this suggestion isn't accepted, we'll be back to square one.
See the Oxford Advanced American Dictionary entry: square