IPA: //naɪnˈtiːnθ//
KK: /naɪnˈtiːnθ/
A term used to describe the position of something that is number 19 in a sequence or series.
She finished in the nineteenth place in the race.
Nineteenth → It is formed from "nine" (from Old English "nigon", meaning the number nine) and "-teenth" (from Old English "-tīene", meaning the ordinal form of a number). The word "nineteenth" refers to the ordinal position of nine in a sequence, indicating it is the ninth position in a series of ten.
Think of the number 'nine' and remember that 'nineteenth' means the ninth position in a sequence.
No commonly confused words.