This is the 14th most frequent Japanese word.
人
"Person" or "human."
The word '人' (hito) in this sentence refers to an individual person, describing their character.
彼は親切な人です。
He is a kind person.
Here, '人' (hito) is used to indicate an unspecified individual observed performing an action, emphasizing the act rather than the identity of the person.
私は運動場で人が走るのを見ました。
I saw a person running in the playground.
The word '人々' (hitobito) is the plural form of '人', representing multiple individuals in this context.