/twen"tee aytth", -ayth", twun"-/ , adj.
1. next after the twenty-seventh; being the ordinal number for 28.
2. being one of 28 equal parts.
n.
3. a twenty-eighth part, esp. of one ( 1 / 28 ).
4. the twenty-eighth member of a series.
TWENTY-EIGHTH
Meaning of TWENTY-EIGHTH in English
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012