Synonyms: backbone, spine, rachis, spinal column
| Part of speech | common noun |
|---|---|
| Pronunciation | /bæk/ |
| Hyphenation | back |
| Shavian alphabet | 𐑚𐑨𐑒 |
| Deseret alphabet | 𐐺𐐰𐐿 |
| Plural | backs |
| Afrikaans | ruggraat |
|---|---|
| Catalan | espinada |
| Czech | páteř |
| Dutch | ruggegraat; wervelkolom |
| Esperanto | spino; rakio; vertebraro; vertebra kolono |
| German | Rückgrat |
| Greek | ραχοκοκκαλιά |
| Spanish | columna vertebral; espinazo; raquis |
| Swedish | ryggrad |