青 is an adjective that can mean "green," "blue," or "young/youthful" depending on context. In traditional Chinese color terms, 青 spans the blue-green spectrum. It also carries connotations of youth and vitality, appearing in words like 青年 (youth) and 青春 (youthfulness).
远处的山看起来一片青绿。
yuǎnchù de shān kàn qǐlái yī piàn qīnglǜ.
The mountains in the distance look lush and green.
他还是个青年,未来有无限可能。
tā háishì gè qīngnián, wèilái yǒu wúxiàn kěnéng.
He is still a young man with limitless possibilities ahead.
春天来了,小草都变青了。
chūntiān láile, xiǎocǎo dōu biàn qīngle.
Spring has come, and the grass has turned green.