IPA: /ˌkɒləˈkeɪʃən/
KK: /kɑləˈkeɪʃən/
A group of words that are often used together in a specific way, making them sound natural to native speakers.
In English, some phrases like 'make a decision' are common collocations.
Collocation is formed from "co-" (meaning together) and "locare" (meaning to place). The word refers to the act of placing words together in a specific arrangement or context.
Think of words being 'placed together' ('locare') in a specific way ('co-') — that's what collocation means.