1to do; to engage in
2to write; to compose
3to pretend; to feign
4to regard as; to consider to be
5to be; to act the part of
6to feel (itchy, nauseous etc)
7writings; works
Examples
nǐ你yīng gāi应该zhī dào知道yào要wèi为kǎo shì考试zuò作zhǔn bèi准备。
你应该知道要为考试作准备。
You should have known better than to take an examination without preparing for it.
每天作一些练习是必须的。
It is necessary to take some exercise every day.
她把我认作我弟弟了。
She took me for my brother.