This is the 6407th most frequent Russian word.
чужие
"Strangers" or "alien/foreign (ones)."
In this usage, 'чужие' refers to 'strangers' or people unfamiliar to the speaker, pointing to a lack of personal connection or acquaintance.
Чужие люди часто кажутся загадочными.
Strangers often seem mysterious.
In this sentence, 'чужой' refers to something not belonging to the speaker or the person being discussed, indicating possession by another party.
Этот дом — не мой, а чужой.
This house is not mine, but someone else's.
Here, 'чужие' describes matters or affairs belonging to other people, emphasizing the distinction and boundary from one's own.