[xǔ]
[动]
（称赞； 承认优点） praise
esteem and commend
推许
praise; commend
赞许
（答应） promise
He promised me a ticket.
他许过我1张票。
He made promises of a large reward.
他许下要给大报酬的诺言。
（允许；许可） allow; permit
Smoking is not permitted here.
此处不许吸烟。
Only fifty kilos are allowed for personal luggage.
每人只许携带50公斤行李。
No retreat is allowed, only advance.
只许前进， 不许后退。
（许配） betroth a girl; engage to; affianced to sb.
[副]
（也许； 或许） maybe; possibly; perhaps
He didn't come today; perhaps he's ill.
他今天没来，许是生病了。
Perhaps he isn't coming.
他许不来了。
It's so dark. Perhaps it's going to rain.
天这么黑，许是要下雨吧。
（表示程度或大约的数目） about; approximately
about forty years old
年许40
somewhat; a little
少许
[名]
[书]（处； 地方） place
Where does the person come from?
何许人?
（周朝国名） Xu, a state in the Zhou Dynasty
（姓氏） a surname
Xu Shen
许慎