• gozilla,
• godzila,
• tonzilla,
• odilla,
• kodilla,
• godlilly,
• goddzila,
• fodzilla,
• vodzilla,
• bodzilla,
• hodzilla,
• yodzilla,
• todzilla,
• gidzilla,
• gkdzilla,
• gldzilla,
• gpdzilla,
• goddzilla,
• Godzille,
• godzillar

The adjective form of the word "Godzilla" is "Godzillian" or "Godzillian-esque".

The plural form of the word "Godzilla" is "Godzillas"

The singular form of "Godzilla" is still "Godzilla". The word itself does not change in singular or plural form.