qualifier Syllabification: (qual·i·fi·er)Pronunciation: /ˈkwäləˌfīər/Translate qualifier | into French | into Italian Definition of qualifier noun 1a person or team that qualifies for a competition or its final rounds:he is now 14 and trying to become the youngest qualifier for a PGA Tour event a match or contest to decide which individuals or teams qualify for a competition or its final rounds. 2 Grammar a word or phrase, especially an adjective, used to attribute a quality to another word, especially a noun. (in systemic grammar) a word or phrase added after a noun to qualify its meaning. qualifier in other Oxford dictionaries Definition of qualifier in the British & World English dictionary