Translations: the word in the other languages
- Afrikaans: verhard
- Amharic: harden
- Arabic: هاردن
- Azerbaijani: твердеют
- Bashkir: твердеть
- Belarusian: цвярдзеюць
- Bulgarian: втвърдяват
- Bengali: পাকান
- Bosnian: stvrdne
- Catalan: endurir
- Cebuano: magpatig-a sa
- Czech: ztvrdnout
- Welsh: caledu
- Danish: harden
- German: verhärten
- Greek: σκληραίνει
- Esperanto: harden
- Spanish: endurecer
- Estonian: kõvaks
- Basque: harden
- Persian: سخت
- Finnish: harden
- French: durcir
- Irish: harden
- Scottish Gaelic: harden
- Galician: endurecer
- Gujarati: સખત
- Hebrew: הארדן
- Hindi: कठोर
- Croatian: твердеют
- Haitian: kenbe
- Hungarian: harden
- Armenian: твердеют
- Indonesian: mengeras
- Icelandic: harðna
- Italian: indurire
- Japanese: 硬化
- Javanese: harden
- Georgian: ჰარდენი
- Kazakh: твердеют
- Khmer: រឹង
- Kannada: ಗಟ್ಟಿಯಾಗುತ್ತದೆ
- Korean: 강화
- Kyrgyz: твердеют
- Latin: obdurare
- Luxembourgish: verhärten
- Lao: ແຂງ
- Lithuanian: harden
- Latvian: nocietināt
- Malagasy: aza manamafy
- Mari: пеҥгыдемеш
- Maori: whakapakeketia
- Macedonian: зацврстуваат
- Malayalam: കഠിനമാക്കും
- Mongolian: харден
- Marathi: कठीण
- Hill Mari: кӱӓнгӓш
- Malay: mengeraskan
- Maltese: harden
- Burmese: ခိုင်မာ
- Nepali: कठोर
- Dutch: harden
- Norwegian: harden
- Punjabi: ਜ਼ਿੱਦੀ
- Papiamento: enduresé
- Polish: twardnieje
- Portuguese: endurecer
- Romanian: harden
- Russian: твердеют
- Sinhalese: දැඩි
- Slovak: harden
- Slovenian: otrdi
- Albanian: ngurtësojnë
- Serbian: очврсну
- Sundanese: heuras
- Swedish: harden
- Swahili: harden
- Tamil: ஹார்டன்
- Telugu: హార్డెన్
- Tajik: твердеют
- Thai: ฝั
- Tagalog: tumigas
- Turkish: sertleşmeye
- Tatar: твердеют
- Udmurt: кати
- Ukrainian: твердіють
- Urdu: کٹھور < ؛ ؛>
- Uzbek: qattiqlashtiruvchi
- Vietnamese: cứng lại
- Xhosa: kuziqaqadekisa iintliziyo
- Yiddish: פאַרגליווערן
- Chinese: 变硬
Synonyms, close and similar words for harden
- stiffen
- freeze
- turn into stone
- congeal
- set
- temper
- steel
- season
- solidify
- fortify
- firm up
- strengthen
- toughen
- inure
- jell
- firm