As far as I can tell, Navajo doesn't have a common word for 'zero'.  do-neh-lini means 'neutral'.

"Code Talkers", by Randall Munroe, licensed under Creative Commons Attribution-NonCommercial 2.5 License

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As far as I can tell, Navajo doesn't have a common word for 'zero'. do-neh-lini means 'neutral'.