• nirror symmetry,
• kirror symmetry,
• jirror symmetry,
• murror symmetry,
• mjrror symmetry,
• mkrror symmetry,
• morror symmetry,
• m9rror symmetry,
• m8rror symmetry,
• mieror symmetry,
• midror symmetry,
• mifror symmetry,
• mitror symmetry,
• mi5ror symmetry,
• mi4ror symmetry,
• mireor symmetry,
• mirdor symmetry,
• mirfor symmetry,
• mirtor symmetry,
• mir5or symmetry

The adjective form of "mirror symmetry" is "mirror-symmetric".

The plural form of "mirror symmetry" is "mirror symmetries".

The singular form of the word "mirror symmetry" is "mirror symmetry". It does not have a distinct singular form as it is already a singular noun.