1 sentence for 孟 (mèng — eldest)

1. 孟、仲、季常用来表示兄弟排行的次序。

   mèng, zhòng, jì cháng yòng​lái biǎo​shì xiōng​dì pái​háng de cì​xù.

   Meng, Zhong, and Ji are often used to indicate the order of seniority among brothers.

   Source: Dong Chinese Dictionary