• baloonfish,
• bonfish,
• clinfish,
• kionfish,
• pionfish,
• oionfish,
• luonfish,
• ljonfish,
• lkonfish,
• lionfush,
• lyonfish,
• lionfich,
• ponfish,
• stonfish,
• bonifish,
• cheonfish,
• Jennfish,
• lyenfish,
• liunfish,
• linefish

The adjective form of "lionfish" is "lionfish". The word remains the same in both the noun and adjective forms.

The plural of the "lionfish" can be the "lionfishes".

The singular of the "lionfish" can be the "lionfish".