• twenty-one,
• rwentyone,
• fwentyone,
• gwentyone,
• ywentyone,
• 6wentyone,
• 5wentyone,
• tqentyone,
• taentyone,
• tsentyone,
• teentyone,
• t3entyone,
• t2entyone,
• twwntyone,
• twsntyone,
• twdntyone,
• twrntyone,
• tentyone,
• twentyon,
• twentyoun

• twenty-nine,
• twenty-one,
• twenty-ninth.

The adjective form of "twentyone" is "twenty-first".

The plural form of the word "twentyone" is "twentyones"

The singular form of the word "twentyone" is "twenty-one"