同事 (tóngshì) Colleague (Beginner)
The character “同 (tóng)” means the same and “事 (shì)” means thing literally.
Example:
A: Nǐ rènshi Wáng Hóng ma?
你 认识 王 宏 吗？
Do you know Wang Hong?
B: Dāngrán le, tā shì wǒ tóngshì ne.
当然 了，他 是 我 同事 呢。
Of course, he is my colleague.