n.
Pronunciation: ' n ī n-t ē
Function: noun
Inflected Form: plural nineties
Etymology: Middle English ninety, adjective, from Old English nigontig, short for hundnigontig, from hundnigontig, noun, group of 90, from hund-, literally, hundred + nigon nine + -tig group of 10; akin to Old English t ī en ten
Date: before 12th century
1 ― see NUMBER table
2 plural : the numbers 90 to 99 specifically : the years 90 to 99 in a lifetime or century
– nine · ti · eth \ -t ē - ə th \ adjective or noun
– ninety adjective
– ninety pronoun, plural in construction