老大 lǎodà HSK7 eldest child Origin Definitions Defs Strokes Stroke Words Sentences Sents Showing: boss All meanings 6 lǎodà 6 eldest child 2very 2boss 1old age 1 1 sentence for 老大 (lǎodà — boss) 他是我们公司的老大,所有大事都由他决定。 tā shì wǒmen gōngsī de lǎodà, suǒyǒu dàshì dōu yóu tā juédìng. He is the boss of our company; he makes all the major decisions. Source: Dong Chinese Dictionary