| Part of speech | cardinal number |
|---|---|
| Hyphenation | du·dek unu |
| ? | |
|---|---|
| Afrikaans | een en twintig |
| Albanian | njëzet e një |
| Danish | en og tyve |
| Dutch | eenentwintig |
| English | twenty‐one |
| English (Old English) | an and twentig |
| German | einundzwanzig |
| Icelandic | tuttugu og einn |
| Low German | eynuntwintig |
| Portuguese | vinte e um |
| Saterland Frisian | eenuntwintich |
| Spanish | veinte y uno |
| Sranan | tutenti na wan |
| Swedish | tjugoen; tjugoett |
| Thai | ยี่สิบเอ็ด |
| West Frisian | ienentweintich |