• zphenion,
• xphenion,
• dphenion,
• ephenion,
• wphenion,
• sohenion,
• slhenion,
• s-henion,
• s0henion,
• spgenion,
• spbenion,
• spnenion,
• spjenion,
• sophenion,
• sphenon,
• sphenoin,
• sphienon,
• spheinion,
• sphenoan,
• spheynion

• spinning.

The adjective form of the word "sphenion" is "sphenoid".

The plural form of the word "sphenion" is "sphenions".

The singular form of the word "sphenion" is "sphenion".