pre·de·ter·min·er 
/ˌpri:dəˈtɚmənɚ/ noun
plural pre·de·ter·min·ers /ˌpri:dəˈtɚmənɚ/ noun [count] grammar : a word (such as “both” or “all”) that comes before a determiner in a phrase
▪ In the phrase “for all their trouble,” the word “their” is a determiner and the word “all” is a predeterminer.
▪ In the phrase “for all their trouble,” the word “their” is a determiner and the word “all” is a predeterminer.
