To Prohibit
To Forbid
transitive verb, ichidan verb
This word consists of kanji with hiragana attached. Because the hiragana ends with an う sound, you know this word is a verb. The kanji itself means prohibition so the verb version means to prohibit or to forbid.
This has the same reading as the kanji you learned, meaning you know the reading!
これは、コウイチが自分の禁じられた恋について書いた私小説です。
This is an autobiographical novel that Koichi wrote about his own forbidden love.
医者は、にんぷにアルコールと喫煙を禁じた。
The doctor forbade the pregnant woman from alcohol and cigarettes.
この部屋では、私語を禁じる。
In this room, whispering is prohibited.