collocation

noun
1
a combination of words in a language that happens very often and more frequently than would happen by chance
هم‌آیی, هم‌نشینی
2
the fact of two or more words often being used together, in a way that happens more frequently than would happen by chance
همنشینی (لغات), هم‌آیی لغات, هم‌آیی (واژگان)
Advanced students need to be aware of the importance of collocation.