n.学问, 了解, 知识, 认识, 知道
My knowledge of Japanese is rather poor.
They did it without my knowledge.
She has a detailed knowledge of this period.
1. 知识, 学识, 学问[U][S][(+of)]
A little knowledge is a dangerous thing.
2. 知道, 了解; 消息[U]
My knowledge of Mr. Read is not very great.
bring to sb.'s knowledge
You should bring the matter to his knowledge.
come to sb.'s knowledge
It has come to my knowledge that you are going to Japan.