- Acehnese: ènsiklopèdia
- Afrikaans: ensiklopedie (af)
- Albanian: enciklopedi (sq) f
- Alemannic German: Enzyklopädie
- Amharic: መዝገበ ዕውቀት (mäzgäbä ʿəwḳät)
- Arabic: مَوْسُوعَة (ar) f (mawsūʕa), دَائِرَة مَعَارِف f (dāʔirat maʕārif)
- Moroccan Arabic: موسوعة (mawsūʕa)
- Armenian: հանրագիտարան (hy) (hanragitaran)
- Asturian: enciclopedia f
- Azerbaijani: qamus, ensiklopediya (az), biliklik (South Azerbaijani)
- Arabic: قاموس (qāmūs)
- Bakhtiari: دونسمندنامه (dunismandnāma)
- Baluchi: زانتنامہ (zāntnāma), زانتگرد (zántgird)
- Basque: entziklopedia (eu)
- Belarusian: энцыклапе́дыя f (encyklapjédyja), энцыкляпэ́дыя f (encykljapédyja)
- Bengali: বিশ্বকোষ (bn) (biśśokōś) এনসাইক্লোপিডিয়া (enośaiklōpiḍiẏa)
- Betawi: ènsiklopédi
- Brahui: zántgird
- Breton: holloueziadur (br)
- Bulgarian: енциклопе́дия (bg) f (enciklopédija)
- Burmese: စွယ်စုံကျမ်း (my) (cwaicumkyam:)
- Carpathian Rusyn: енціклопе́дія f (enciklopédija)
- Catalan: enciclopèdia (ca)
- Chinese:
- Cantonese: 百科全書/百科全书 (baak3 fo1 cyun4 syu1), 百科事典 (baak3 fo1 si6 din2)
- Mandarin: 百科全書/百科全书 (zh) (bǎikēquánshū), 百科事典 (zh) (bǎikēshìdiǎn)
- Chuvash: энциклопеди (entsiklop̬edi)
- Crimean Tatar: entsiklopediya
- Czech: encyklopedie (cs) f
- Danish: encyklopædi (da), leksikon (da) n
- Dutch: encyclopedie (nl) m
- Erzya: содамкундо (sodamkundo)
- Esperanto: enciklopedio (eo)
- Estonian: entsüklopeedia (et)
- Faroese: alfrøðibók f
- Finnish: tietosanakirja (fi), ensyklopedia (fi)
- French: encyclopédie (fr) f
- Galician: enciclopedia (gl) f
- Georgian: ენციკლოპედია (enciḳloṗedia)
- German: Enzyklopädie (de) f, Lexikon (de) n, Konversationslexikon (de) n; Realencyclopädie f, Realwörterbuch n (archaic)
- Gilaki: دانشنامه (dånišnåmä)
- Greek: εγκυκλοπαίδεια (el) f (egkyklopaídeia)
- Ancient: πανδέκτης m (pandéktēs)
- Gurani: زانستنامە (zānistnāma)
- Haitian Creole: ansiklopedi
- Hebrew: אֶנְצִיקְלוֹפֶּדְיָה (he) f (entsiklopédya)
- Hindi: ज्ञानकोष m (jñānkoṣ), विश्वकोश (hi) m (viśvakoś), विश्वकोष (hi) m (viśvakoṣ), साइक्लोपीडिया (hi) f (sāiklopīḍiyā), इनसाइक्लोपीडिया f (insāiklopīḍiyā)
- Hungarian: enciklopédia (hu), lexikon (hu)
- Icelandic: alfræðibók (is) f, alfræðiorðabók (is) f, alfræðirit (is) n
- Ido: enciklopedio (io)
- Indonesian: ensiklopedia (id)
- Interlingua: encyclopedia (ia)
- Irish: ciclipéid f
- Italian: enciclopedia (it) f
- Japanese: 百科事典 (ja) (ひゃっかじてん, hyakkajiten), 百科全書 (ja) (ひゃっかぜんしょ, hyakkazensho)
- Kannada: ವಿಶ್ವಕೋಶ (viśvakōśa)
- Karachay-Balkar: энциклопедия (entsiklopediya)
- Kazakh: энциклопедия (énsiklopediä)
- Khmer: វិជ្ជាសមោធាន (vɨcciə saʼmaothiən), សៀវភៅប្រជុំវិជ្ជា (siəw phɨw prɑcum vɨcciə)
- Korean: 백과사전(百科事典) (ko) (baekgwasajeon), 백과전서(百科全書) (ko) (baekgwajeonseo)
- Kurdish:
- Central Kurdish: زانستنامە (zanistname)
- Laki: زانستنۆمە (zanistnome)
- Northern Kurdish: zanistname (ku)
- Southern Kurdish: زانستنامە (zanistname)
- Kyrgyz: энциклопедия (ky) (entsiklopediya)
- Lao: ສາລານຸກົມ (lo) (sā lā nu kom)
- Latin: encyclopaedīa f (new), pandectēs m
- Latvian: enciklopēdija f
- Limburgish: encyklopedie
- Lithuanian: enciklopedija (lt) f
- Livvi: tiedosanakniigu
- Low German: nokieksel
- Luxembourgish: Enzyklopedie f
- Macedonian: енциклопе́дија f (enciklopédija)
- Malay: ensiklopedia (ms), jagat katan
- Malayalam: സർവവിജ്ഞാനകോശം (saṟvavijñānakōśaṁ), വിജ്ഞാനകോശം (ml) (vijñānakōśaṁ)
- Maori: mātāpunenga
- Mazanderani: دانشنومه (dānišnuma)
- Mongolian:
- Cyrillic: нэвтэрхий толь (nevterxii tolʹ)
- Nahuatl: centlamatilizamoxtli (nah)
- Navajo: ínsadoobíídiiya
- Northern Luri: دونسمنامٱ (dunismnāma)
- Northern Sami: diehtosátnegirji
- Northwestern Ojibwa: gikendamowin-mazina'igan
- Norwegian:
- Bokmål: encyklopedi (no) m
- Nynorsk: encyklopedi m
- Old Church Slavonic:
- Cyrillic: єнкѷклопєдїꙗ f (enkü̏klopedija) (new)
- Ossetian: энциклопеди (ènciklopedi)
- Ottoman Turkish: محیطالمعرف (mühītülmā'rif)
- Pashto: پوهنغونډ (ps) m (pohǝnǧwǝnḍ)
- Persian:
- Iranian Persian: دانِشْنامِه (fa) (dânešnâme), دایِرَةُالْمَعارِف (fa) (dâyerat-ol-ma'âref), دائِرَةُالْمَعارِف (dâ'erat-ol-ma'âref), آنْسیکْلوپِدی (fa) (ânsiklopedi)
- Polish: encyklopedia (pl) f
- Portuguese: enciclopédia (pt) f
- Punjabi: ਵਿਸ਼ਵਕੋਸ਼ m (viśvakoś)
- Romanian: enciclopedie (ro) f
- Russian: энциклопе́дия (ru) f (enciklopédija)
- Sanskrit: विश्वकोश (sa) (viśvakośa)
- Serbo-Croatian:
- Cyrillic: енциклопе́дија f
- Roman: enciklopédija f
- Slovak: encyklopédia (sk) f
- Slovene: enciklopedija (sl) f
- Sorbian:
- Lower Sorbian: encyklopedija f
- Upper Sorbian: encyklopedija f
- Spanish: enciclopedia (es) f
- Swahili: kamusi elezo, ensaiklopidia
- Swedish: encyklopedi (sv) c, konversationslexikon (sv) n, uppslagsverk (sv) n
- Tagalog: santalaalaman, ensiklopedya (tl)
- Tajik: донишнома (tg) (donišnoma), доиратулмаориф (doyiratulmaorif), энсиклопедия (ensiklopediya)
- Tatar: энциклопедия (entsiklopediyä)
- Telugu: విజ్ఞానసర్వస్వం (vijñānasarvasvaṁ)
- Thai: สารานุกรม (th) (sǎa-raa-nú-grom)
- Tibetan: ཤེས་བྱ་ཀུན་ཁྱབ་མཛོད (shes bya kun khyab mdzod, literally “treasury of the universally knowable”), རིག་མཛོད (rig mdzod, literally “knowledge treasury”) (non-standard, but now used to translate “-pedia” in “Wikipedia”)
- Tigrinya: ኢንሳይክሎፐድያ (ʾinsaykəlopädya), መዝገበ ፍልጠት (mäzgäbä fəlṭät)
- Turkish: ansiklopedi (tr)
- Turkmen: ensiklopediýa
- Ukrainian: енциклопе́дія f (encyklopédija)
- Urdu: دائِرَۃُ الْمَعارِف (dāiratu l-ma'ārif), کِتابُ الْمَعارِف (kitābu l-ma'ārif), قامُوس (ur) m (qāmūs), اِنْسائِیکِلوپِیڈْیا (insāīkilopīḍyā), موسوعہ (mausū'a), احصاء العلوم (ihsā'-ul-u'lūm), قاموس الاحلام (qāmūs-al-ahlām)
- Uyghur: قامۇس (ug) (qamus), ئېنسىكلوپېدىيە (ënsiklopëdiye), ئېنىسىكلوپېدىيە (ënisiklopëdiye)
- Uzbek: ensiklopediya (uz), qomus (uz)
- Vietnamese: bách khoa toàn thư (vi) (百科全書)
- Volapük: sikloped (vo), (synonym) züklopäod, realasikloped
- Welsh: gwyddoniadur (cy) m
- West Frisian: ensyklopedy
- Yakut: энциклопедия (entsiklopediya)
- Yiddish: ענציקלאָפּעדיע f (entsiklopedye)
- Zazaki: ensiklopediye
- Zealandic: encyclopedie
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