Number Of People
People, Counter For People
counter
When you see this on a number, for example ７人 or ３人, you're using it to count people. Just remember, both 一人 and 二人 have alternative readings. From 3 and up it's just the number plus にん, like this. ５人 is ごにん, １０人 is じゅうにん, etc. This is the counter for people, which makes this word the number of people.
にん
This is a counter, which usually means on'yomi readings from the kanji. Since 人 has two on'yomi readings, here's a mnemonic to help you remember which one to use:
Just think of the sheer number of people at Nintendo (にん). It must be huge. This really is just a counter for people that work at Nintendo.
ぜんぶで十人いました。
There were 10 people, altogether.
トーフグにはなん人のしゃいんがいますか？
How many workers are in Tofugu?
わたしは三人子どもがいます。
I have three children.