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noble gas

noun

• inert gas
• argonon
• chemical element
• element
• gas

sounds kind of like

• nabalus
• nablus
• naples
• nebulose
• nebulous
• neoplasia
• nepalese
• nephology
• niblick
• noblesse
• nonplus
• nonpublic
• nova lox
• novelise
• novelize
• nymphalis