Common Meanings
1
huán还
To return to one's original place or state, such as returning to one's hometown.
他终于可以还乡了。
He can finally return to his hometown.
To return (an action or blow), to repay, to retaliate, to strike back.
他没有选择逃避，而是勇敢地还击了对手。
He didn't choose to escape, but bravely struck back at his opponent.
To return, repay, or restore something (e.g., an item, a debt, or its original state).
他每月都会按时还贷款。
He repays the loan on time every month.
To encircle; to surround; similar to '环' (huán).
群山还绕着这座古老的寺庙。
The mountains encircle this ancient temple.
2
hái还
still; yet
他还在睡觉。
He is still sleeping.
still more; even more (indicating a higher degree or an additional extent)
明天会比今天还热。
Tomorrow will be even hotter than today.
still; in addition to; also; furthermore (used to indicate something in addition to what has already been mentioned)
学习知识，还要学会运用
When acquiring knowledge, one also needs to learn how to apply it.
still; fairly good; passable (referring to condition or quality)
他今天心情还好。
He's in a fairly good mood today.
still; yet; even; indicating that a situation persists or is true even under certain circumstances, often implying 'let alone' for other cases.
连他这么聪明的人,还犯这种错误,何况普通人呢?
Even someone as smart as him still makes this kind of mistake, let alone ordinary people?