Number
Count, Amount
noun
The kanji and the word are exactly the same. That means they share meanings as well.
This word is used to say things like "a high number" and "the number of students".
Since this word is made up of a single kanji, it should use the kun'yomi reading. When learning the kanji, you didn't learn that reading, so here's a mnemonic to help you with this word:
Imagine yourself counting by playing a kazoo (かず). Each number you count, you toot your kazoo. How fun!
このスープに入ってるトマトの数は？
What is the number of tomatoes in this soup?
今回、死亡した人の数は前回と同じでした。
This time, the number of deaths was the same as last time.
日本では、生まれる赤ちゃんの数が下がっている。
In Japan, the number of babies being born is decreasing.