| Arabic |
| lexicalization | ara: عقد 1340 |
| Aragonese |
| lexicalization | arg: Decenio de 1340 |
| Asturian |
| lexicalization | ast: Años 1340 |
| Belarusian |
| has gloss | bel: 1340-я |
| lexicalization | bel: 1340-я |
| Bosnian |
| lexicalization | bos: 1340te |
| Breton |
| lexicalization | bre: Bloavezhioù 1340 |
| Catalan |
| lexicalization | cat: Dècada del 1340 |
| Chuvash |
| lexicalization | chv: 1340-мĕш çулсем |
| Welsh |
| has gloss | cym: 13eg ganrif - 14eg ganrif - 15fed ganrif 1290au 1300au 1310au 1320au 1330au - 1340au - 1350au 1360au 1370au 1380au 1390au 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 |
| lexicalization | cym: 1340au |
| Danish |
| has gloss | dan: Århundreder: 13. århundrede - 14. århundrede - 15. århundrede |
| lexicalization | dan: 1340'erne |
| German |
| lexicalization | deu: 1340er |
| Esperanto |
| lexicalization | epo: 1340-aj jaroj |
| Estonian |
| has gloss | est: 1340. aastad |
| lexicalization | est: 1340. aastad |
| Basque |
| has gloss | eus: 1340ko hamarkadak 1340etik 1349. urtera bitarteko iraupena du, biak barne. |
| lexicalization | eus: 1340ko hamarkada |
| Persian |
| has gloss | fas: دهه ۱۳۴۰ (میلادی) صد و سی و چهارمین دهه تقویم میلادی است. مناسبتها رویدادها زادگان درگذشتگان |
| lexicalization | fas: دهه ۱۳۴۰ |
| Finnish |
| lexicalization | fin: 1340-luku |
| French |
| has gloss | fra: | | Années 1320 | Années 1330 | Années 1340 | Années 1350 | Années 1360 |
| lexicalization | fra: Annees 1340 |
| lexicalization | fra: Années 1340 |
| Gan Chinese |
| has gloss | gan: 1340年代係指年到年之間嗰十年。 |
| lexicalization | gan: 1340年代 |
| Gaelic |
| lexicalization | gla: 1340an |
| Croatian |
| lexicalization | hrv: 1340-ih |
| Hungarian |
| lexicalization | hun: 1340-es évek |
| Ido |
| lexicalization | ido: 1340a yari |
| Indonesian |
| lexicalization | ind: 1340-an |
| Icelandic |
| lexicalization | isl: 1341-1350 |
| Italian |
| lexicalization | ita: Anni 1340 |
| Javanese |
| lexicalization | jav: 1340-an |
| Japanese |
| has gloss | jpn: 年表: 13世紀 - 14世紀 - 15世紀 : 100年前 50年前 - 50年後 100年後 |
| lexicalization | jpn: 1340年代 |
| Georgian |
| lexicalization | kat: 1340-იანები |
| Komi |
| has gloss | kom: Сюрс куимсё нелямынӧд вояс - 1341 восянь 1350 воӧдз. |
| lexicalization | kom: 1340-ӧд вояс |
| Korean |
| has gloss | kor: | align=right cellpadding=3 id=toc style="margin-left: 15px;" | align="center"| 세기 12세기 13세기 - 14세기 - 15세기 16세기 |- | align="center"| 연대 1320년대 1330년대 - 1340년대 - 1350년대 1360년대 |- | align="center"| 해 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 |} |
| lexicalization | kor: 1340년대 |
| Kölsch |
| has gloss | ksh: De 1340-jo Joohre sinn_e Jozeent_jewääse. |
| lexicalization | ksh: 1340-er Joohre |
| lexicalization | ksh: 1340er Joohre |
| Latin |
| lexicalization | lat: Decennium 135 |
| Latvian |
| lexicalization | lav: 1340. gadi |
| Lithuanian |
| has gloss | lit: XIV amžiaus penktasis dešimtmetis prasidėjo 1341 metais ir baigėsi 1350 metais. __NOTOC__ Tūkstantmečiai: 1 tūkstantmetis – 2 tūkstantmetis – 3 tūkstantmetis |
| lexicalization | lit: XIV amžiaus 5-as dešimtmetis |
| Malayalam |
| lexicalization | mal: 1340-കള് |
| Marathi |
| lexicalization | mar: इ.स.चे १३४० चे दशक |
| Macedonian |
| lexicalization | mkd: 1340-ти |
| Malay (macrolanguage) |
| has gloss | msa: Dekad 1340-an merupakan tahun-tahun dari 1340 hingga 1349. |
| lexicalization | msa: 1340-an |
| Norwegian Nynorsk |
| lexicalization | nno: 1340-åra |
| Norwegian |
| lexicalization | nor: 1340-årene |
| Portuguese |
| has gloss | por: Séculos: Século XIII - Século XIV - Século XV |
| lexicalization | por: Década de 1340 |
| Quechua |
| has gloss | que: 1340 watakuna nisqa chunkantin watakunaqa 1 ñiqin qhulla puquy killapi 1340 watapi qallarirqan. 31 ñiqin qhapaq raymi killapi 1349 watapi puchukarqan. |
| lexicalization | que: 1340 watakuna |
| Moldavian |
| has gloss | ron: Secole: Secolul XIII - Secolul XIV - Secolul XV |
| lexicalization | ron: Anii 1340 |
| Russian |
| lexicalization | rus: 1340-е |
| Yakut |
| has gloss | sah: 1340-с сыллар. |
| lexicalization | sah: 1340-с |
| Sicilian |
| has gloss | scn: | align=right cellpadding=3 id=toc style="margin-left: 15px;" |- | align="center" colspan=2 | Dicini: 1320ini - 1330ini - 1340ini - 1350ini -1360ini |- | align="center" | Sèculi: Sèculu XIII - Sèculu XIV - Sèculu XV |} |
| lexicalization | scn: 1340ini |
| Slovak |
| has gloss | slk: | align="right" cellpadding="3" id="toc" style="margin-left: 15px;" |- | align="center" | Storočia: 13. storočie - 14. storočie - 15. storočie |- | align="center" colspan="2" | Dekády: 30. roky 14. storočia - 40. roky 14. storočia - 50. roky 14. storočia |- | align="center" colspan="2" | Roky: 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 |} |
| lexicalization | slk: 40. roky 14. storočia |
| Slovenian |
| has gloss | slv: Stoletja: 13. stoletje - 14. stoletje - 15. stoletje |
| lexicalization | slv: 1340. |
| Castilian |
| lexicalization | spa: Anos 1340 |
| lexicalization | spa: Años 1340 |
| Albanian |
| has gloss | sqi: Mbi vitet 1340. |
| lexicalization | sqi: Vitet 1340 |
| Serbian |
| has gloss | srp: 13. век | 14. век | 15. век 1310е | 1320е | 1330е | 1340е | 1350е | 1360е | 1370е 1340 | 1341 | 1342 | 1343 | 1344 | 1345 | 1346 | 1347 | 1348 | 1349 |
| lexicalization | srp: 1340-е |
| lexicalization | srp: 1340е |
| Sundanese |
| has gloss | sun: 1340-an nyaéta dékade atawa dasawara sanggeus Maséhi dina kalénder Gregorian nu dimimitian ti taun 1340 nepi ka taun 1349. |
| lexicalization | sun: 1340-an |
| Swedish |
| lexicalization | swe: 1340-talet |
| Tatar |
| lexicalization | tat: 1340. yıllar |
| Thai |
| lexicalization | tha: คริสต์ทศวรรษ 1340 |
| Turkmen |
| lexicalization | tuk: 1340ýý |
| Turkish |
| lexicalization | tur: 1340'lar |
| Ukrainian |
| lexicalization | ukr: 1340-ві |
| Uzbek |
| has gloss | uzb: 1340-lar |
| lexicalization | uzb: 1340-lar |
| Vietnamese |
| lexicalization | vie: Thập niên 1340 |
| Vlaams |
| lexicalization | vls: 1340-1349 |
| Yue Chinese |
| has gloss | yue: 1340年代係指年去到年之間嗰十年。 |
| lexicalization | yue: 1340年代 |
| Chinese |
| has gloss | zho: 世纪：13世纪－14世纪－15世纪 |
| lexicalization | zho: 1340年代 |
