文明 (wénmíng) means "civilization" or "civilized." As a noun, it refers to a society's culture and development, as in 古老的文明 (ancient civilization). As an adjective, it describes behavior that is polite and cultured.
中国有五千年的文明历史。
zhōngguó yǒu wǔqiān nián de wénmíng lìshǐ.
China has five thousand years of civilized history.
请文明排队,不要插队。
qǐng wénmíng páiduì, bùyào chāduì.
Please queue in an orderly manner and don't cut in line.
古埃及文明对世界影响很大。
gǔ āijí wénmíng duì shìjiè yǐngxiǎng hěn dà.
Ancient Egyptian civilization had a great influence on the world.