The noun 集团 (jítuán) means 'group,' 'conglomerate,' or 'corporation.' It refers to a large organization, often a business entity made up of multiple subsidiaries. It appears in company names and organizational titles, such as 中国船舶集团 (China Shipbuilding Group).
这家集团旗下有好几个品牌。
Zhè jiā jítuán qíxià yǒu hǎo jǐ gè pǐnpái.
This group has several brands under it.
他在一个大型企业集团工作。
Tā zài yī gè dàxíng qǐyè jítuán gōngzuò.
He works at a large enterprise group.
这个集团最近收购了一家科技公司。
zhège jítuán zuìjìn shōugòu le yì jiā kējì gōngsī.
This conglomerate recently acquired a technology company.