• aouvlaki,
• zouvlaki,
• xouvlaki,
• douvlaki,
• eouvlaki,
• wouvlaki,
• siuvlaki,
• skuvlaki,
• sluvlaki,
• spuvlaki,
• s0uvlaki,
• s9uvlaki,
• soyvlaki,
• souvoaki,
• souvlakki,
• suvlaki,
• souvlakia,
• souvlakie,
• souvalaki,
• suvlakis

• souvlakia.

The adjective form of the word "souvlaki" is "souvlakian". However, it is worth mentioning that this term is not commonly used, and instead, you would typically describe souvlaki using other terms such as "grilled," "marinated," or "Greek".

The plural form of "souvlaki" is "souvlakia"

The singular form of the word "souvlaki" is "souvlaki" as it is already a singular noun.