1 [C] a number of people or organizations that have the same interests, aims or characteristics and are often part of a larger group （有共同利益、目标或特点的人或组织的）小群体: These small nations constitute an important grouping within the EU. 这些小国家是欧盟的重要组成部份。

2 [U] the act of forming sth into a group 分组；归类