| Part of speech | common noun |
|---|---|
| Hyphenation | najl·o |
| Singular | Plural | |
|---|---|---|
| Nominative | najlo | najloj |
| Accusative | najlon | najlojn |
| Catalan | clau |
|---|---|
| Chinook Jargon | lekʰlu |
| Danish | søm |
| Dutch | draadnagel; nagel; spijker |
| English | nail; stud |
| English (Old English) | nægel |
| Faeroese | seymur |
| Finnish | naula |
| French | clou |
| German | Nagel; Stift |
| Hungarian | szeg |
| Italian | chiodo |
| Latin | clavus |
| Malay | paku |
| Norwegian | spiker |
| Papiamento | klabo; klabu |
| Portuguese | cravo; prego |
| Saterland Frisian | Spieker |
| Scottish Gaelic | tarag |
| Spanish | clavo |
| Swedish | nagel; spik |
| Thai | ตะปู |
| West Frisian | spiker |