She claimed to have a 'sixth sense' for knowing when someone was about to call her.
I'll be flying in on the 'sixth'. [=the sixth day of the month]
He got a base hit in the 'sixth'. [=the sixth inning]
(..) What do you got?. Outstanding, Private Pyle. I think we finally found something that you do well. Sir, yes, sir. What's your siXth general order?. Sir, the siXth general order is to receive and obey... ...and pass on to the sentry who relieves me... ...all orders.... Sir, the private's siXth general.... The private has been instructed but does not know. You slimy scumbag, get on your face and give me . Sir, aye, aye, sir. (..)1987 Full Metal Jacket