Meaning of méi shì:
没事
it's not important; it's nothing; never mind
Yǔ tūrán tíngle, dàjiā shuō méi shì le, kěyǐ jìxù chūmén.
雨突然停了，大家说没事了，可以继续出门。
The rain suddenly stopped, and everyone said it's not important anymore, we can continue going out.
Bié dānxīn, zhè méi shénme dà bù liǎo de, méi shì.
别担心，这没什么大不了的，没事。
Don't worry, it's nothing important, it's nothing.
Tā chídào le, dàn wǒ gàosù tā méi shì.
他迟到了，但我告诉他没事。
He was late, but I told him never mind.
to have nothing to do; to be free; to be all right (out of danger or trouble)
Jīntiān xiàwǔ wǒ méi shì, wǒmen kěyǐ yīqǐ qù hē kāfēi.
今天下午我没事，我们可以一起去喝咖啡。
I have nothing to do this afternoon, we can go for coffee together.
Xīngqīliù wǒ méi shì, kěyǐ hé nǐ qù kàn diànyǐng.
星期六我没事，可以和你去看电影。
I am free on Saturday and can go to the movies with you.
Tā shuāi dǎo le, dàn zhàn qǐ lái shuō tā méi shì.
他摔倒了，但站起来说他没事。
He fell, but stood up and said he was all right.
