同义词是causes ，中文意思是原因，理由

例如

The causes are many and may interconnect.原因很多，而且还可能互相关联。

The book is an analysis of poverty and its causes.这本书分析了贫困及其原因。

When the Ganges floods， it causes considerable damage.恒河泛滥时造成严重损害。