grow up是什么意思

grow和grow up的区别如下。
grow可以作及物动词或不及物动词，也可以作联系动词，表示成长、种植或变得怎么样的意思，如：
一、及物动词用法。
I always grow a few red onions.
Lettuce was grown by the Ancient Romans.
I started growing my hair.
二、不及物动词用法。

We stop growing at maturity.
The hair began to grow again and I felt terrific.
They began to grow as persons.
三、联系动词用法：
He is growing old.
Faint grew the sound of the bell.
The hair of the dog grows thick.
grow up只有不及物动词的用法，表示长大成人，成熟的意思，如果主语为事物，则表示形成、兴起或逐渐发展的意思，如：
She grew up in Tokyo.
It is time that my son grew up.
A variety of heavy industries grew up alongside the port.