Canine is particularly entertaining with its representation as K9. There are a lot of words with nine in them, but they don't all pronounce as 9 the number is pronounced.
For the record, there are 334 words containing nine. This sort of information is widely available because of Scrabble.
The free dictionary lists all the words with nine in them from 15 letter words down to five letter words. There is one word with five letters - nines.
And what if you seem to want to name your child with "nine" in the name? There are a lot of names with nine in the name - 38 of them. Nine is a name in Croatia.
And don't forget that nine occurs in various languages, as demonstrated by these two jokes:
What if you were trying to say the number 9, But Germany said no
During my French Exam, I suddenly couldn’t remember what the number 9 was in French I immediately became very neuf-ous
These are the best of yesterday's experiments with in-camera multiple exposures. I haven't turned the the first one to black and white - this was the natural colour and light.