1.曾经（ceng2 jing1）- once。2.曾祖父（ceng2 zu3 fu4）- great-grandfather。3.曾孙子（ceng2 sun1 zi3）- great-grandson。4.曾姓（ceng2 xing4）- surname Zeng。5.曾经历（ceng2 jing1 li4）- experienced。6.曾经验（ceng2 jing1 yan4）- past experience。7.曾观点（ceng2 guan1 dian3）- previous viewpoint。8.曾（ceng2 guan1 yuan2）- former official。9.曾经典（ceng2 jing1 dian3）- classic works。