nine 
/ˈnaɪn/ noun
plural nines /ˈnaɪn/ noun 1 [count] : the number 9 2 [count] : the ninth in a set or series
▪ The next card was the nine of diamonds. ▪ She wears a size nine. 3 [noncount] : nine o'clock
▪ “What time is it?” “It's nine.” ▪ He woke up at nine this morning. ▪ a nine-to-five job [=a job that you work during regular business hours usually in an office] 4 [count] : the first or last nine holes of an 18-hole golf course — usually singular ▪ She didn't play well on the front nine [=on holes 1 through 9], but she was one under par on the back nine. [=on holes 10 through 18]
▪ The next card was the nine of diamonds. ▪ She wears a size nine.
▪ “What time is it?” “It's nine.” ▪ He woke up at nine this morning. ▪ a nine-to-five job [=a job that you work during regular business hours usually in an office]
on cloud nine — see 1cloud
the whole nine yards — see 2yard
to the nines
: in a very fancy or impressive way
▪ He was dressed to the nines.
▪ He was dressed to the nines.
— nine adjective
▪ It took us nine hours to get there.
▪ It took us nine hours to get there.
— nine pronoun
▪ I would like nine (of them), please. ▪ Nine out of 10 [=90 percent of] doctors agree that this treatment works.
▪ I would like nine (of them), please. ▪ Nine out of 10 [=90 percent of] doctors agree that this treatment works.
