IPA: //ˈkwɔːrtərˌfaɪnəl//
KK: /ˈkwɔrtərˌfaɪnəl/
Relating to one of the four matches in a tournament where the winners advance to the semifinals.
The team played exceptionally well in the quarterfinal match, securing their place in the semifinals.
A stage in a competition where the last eight participants or teams compete to advance to the semifinals.
The team won their quarterfinal match and moved on to the semifinals.
Quarterfinal → It is formed from "quarter" (from Old French *quart*, meaning one-fourth) and "final" (from Latin *finalis*, meaning pertaining to the end). The word "quarterfinal" refers to a match or round that is one-fourth of the way to the final stage of a competition.
Think of a stage that is one-fourth of the way to the end ('quarter') — that's why a quarterfinal is a round leading to the final.