dream是可数名词还是不可数名词？

I have a dream.
可数名词（CN）
[详解]dream
a.1. 如梦的;理想的
n.1. 梦
His new sports car is a dream to drive.
他的新赛车开起来好极了。
Sophie lives in a dream.
索菲生活在梦幻之中。
He realized the dream of his life time.
他实现了他毕生的愿望。
2. 梦想, 幻想, 空想
3. 理想, 愿望(of)
4. 梦一般美妙的人[事物], 美景
awake from a dream
从梦中醒来
The girl is a perfect dream.
这个女孩子太美了。
His dream of being a doctor has come true.
他当医生的愿望实现了。
a fond dream
黄梁美梦
v.1. 做梦
vi.1. 做梦;梦见,梦到[(+of/about)]
vt.1. 做(梦)[+a...dream];梦见[+(that)]
She dreamed that she could fly.
她梦见她会飞。

可数的。
I have many dreams, one of them is to be an English teacher.在这里是‘梦想’
Good night, sweet dreams!

CN,你想想你天天做梦,每天梦不同.不就有一个两个三个等几个梦了，你有梦想,小时候有的梦想和长大了的,老了的梦想肯定不同,所以所以就有复数了

可数
马丁路得金 名言：I have a dream

是可数名词和动词