Synonym: doganunio
| Part of speech | unknown part of speech |
|---|
| Catalan | unió duanera |
|---|---|
| Dutch | douane‐unie; tolunie |
| English | customs union |
| Finnish | tulliliitto; tulliunioni |
| French | union douanière |
| German | Zollunion |
| Icelandic | tollabandalag |
| Italian | unione doganale |
| Latin | unio telonialis |
| Luxemburgish | Douanes‐Unioun; Zollunioun |
| Malay | serikat pabean |
| Norwegian | tollunion |
| Polish | unia celna |
| Portuguese | união aduaneira |
| Russian | таможенный союз |
| Spanish | unión aduanera |
| Swedish | tullunion |
| Turkish | gümrük birliği |
| Welsh | undeb tollau |