真 + Adjective/Noun
真 (zhēn) as an adjective means "real" or "true" and can be used to emphasize the genuine nature of something. When modifying other words, it conveys a sense of "really" or "truly" to stress sincerity or authenticity. It is extremely common in everyday Chinese.
这幅画是真的,不是复制品。
Zhè fú huà shì zhēn de, bú shì fùzhìpǐn.
This painting is authentic, not a reproduction.
他是我的真朋友,一直在我身边。
Tā shì wǒ de zhēn péngyou, yìzhí zài wǒ shēnbiān.
He is my true friend, always by my side.
只有经历过困难,才能看清谁是真心对你好的人。
Zhǐyǒu jīnglìguò kùnnan, cáinéng kànqīng shéi shì zhēnxīn duì nǐ hǎo de rén.
Only after going through hardships can you see who truly cares about you.