feet/foot – chee-ow
Written as jiăo or jiao
To remember that feet/foot is pronounced chee-ow (jiao) in Mandarin Chinese, use the following mnemonic:
"If your feet smell of cheese, you're not allowed (chee-ow) in the house".

Tones
Ow (allowed) is a 3rd tone with ∪ as an accent.
Associate allowed, a 3rd tone, with a horse shoe or horse or smile. See Tones and Mnemonics.

No smiles allowed!
Remember
Ow = 3rd tone = ∪