| 单词 | groupings | 
| 释义 | group1 of 2noun   ˈgrüp   often attributive   1    : two or more figures forming a complete unit in a composition  went there as a group   2   a     : a number of individuals assembled together or having some unifying relationship  a study group    b     : an assemblage of objects regarded as a unit  one of the food groups    c(1)     : a military unit consisting of a headquarters and attached battalions    (2)     : a unit of the U.S. Air Force higher than a squadron and lower than a wing   3   a     : an assemblage of related organisms  —often used to avoid taxonomic connotations when the kind or degree of relationship is not clearly defined    b(1)     : two or more atoms joined together or sometimes a single atom forming part of a molecule    especially : functional group    a methyl group    (2)     : an assemblage of elements forming one of the vertical columns of the periodic table    c     : a bed or layer of rocks deposited during an era   4    : a mathematical set that is closed under a binary associative operation, contains an identity element, and has an inverse for every element   group 2 of 2verb  grouped; grouping; groups    transitive verb 1    : to combine in a group  grouped English and Dutch as Germanic languages   2    : to assign to a group : classify  The children were grouped by age.   intransitive verb 1    : to form a group  The students grouped around the table.   2    : to belong to a group   3    : to make groups of closely spaced hits on a target  the gun grouped beautifully    groupable    ˈgrü-pə-bəl   adjective groupings noun1  as in clusters   a number of things considered as a unit the standard grouping for an average living room: sofa, matching wing chairs, and the inevitable coffee table   Synonyms & Similar Words Relevance     
 Antonyms & Near Antonyms 
 2  as in groups   a usually small number of persons considered as a unit the next grouping of tourists can start the house tour as soon as the last bunch leaves   Synonyms & Similar Words 
 Antonyms & Near Antonyms 
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