- denoting a quantity consisting of one more than eight and one less than ten
- the cardinal number that is the sum of eight and one
- School begins at 9.
- Size 9, I think.
- Can you come at 9?
- The next Hikari arrives at 9:15.
- Tom has a 9-5 office job.
- I barely made the 9:20 train.
- My level 9 barbarian has been killed.
- The movie K-9 is showing.
- My level 9 barbarian has died.
- The 9:35 train stops at Bambury.
- The market opens at 9:00 a.m.
- Take the express on track 9.
- You should be back by 9 o'clock.
- The store opens at 9 a.m.
- She got in at 9 p.m.