• nitches,
• bitchez,
• natcher,
• nacher,
• nitche,
• natches,
• natcer,
• snachez,
• notche,
• natcho,
• natchos,
• natch,
• inachiz,
• narthez,
• natcehz,
• natchze,
• natchezz,
• natchaz,
• nutchel,
• natchy

The plural form of the word "natchez" is also "natchez".

The singular form of the word "Natchez" is still "Natchez". The word itself represents the name of a city in Mississippi and is not typically altered when referring to a single entity or individual.