• luthur,
• lutheer,
• luther,
• lutier,
• lyuthier,
• lutnhier,
• lutheir,
• lethier,
• luthiar,
• Owthire,
• lothaer,
• lothai,
• lothiar,
• ludier,
• Luchcee,
• Luchcey,
• Guthser,
• Lureier,
• lythie,
• Jutier

• leather,
• Luter,
• luther,
• lathe,
• lather.

The adjective form of "luthier" is "luthierie". However, it is not commonly used, and the word "luthier" is more commonly used as a noun to refer to a person who makes or repairs stringed instruments.

The plural form of the word "luthier" is "luthiers".

The singular form of the word "luthier" is "luthier". It remains the same in both singular and plural form.