Princeton's WordNet

1. unlock(verb)

   open the lock of

   "unlock the door"

2. unlock(verb)

   set free or release

3. unlock(verb)

   become unlocked

   "The door unlocked from the inside"

Kernerman English Learner's Dictionary

1. unlock(verb)ʌnˈlɒk

   to open sth that is locked

   He unlocked the back door.

Wiktionary

1. unlock(Verb)

   To undo or open a lock or something locked by, for example, turning a key, or selecting a combination.

   I unlocked the door and walked in

2. unlock(Verb)

   to give access to something

   I unlocked the dictionary article so it could be edited

3. unlock(Verb)

   To disclose or reveal previously unknown knowledge.

   The discovery of a clue unlocked the mystery

4. unlock(Verb)

   To be or become unfastened or unrestrained

   The safe was already unlocked

Webster Dictionary

1. Unlock(verb)

   to unfasten, as what is locked; as, to unlock a door or a chest

2. Unlock(verb)

   to open, in general; to lay open; to undo

• ontsluit, sluit oopAfrikaans
• يَفْتَح القِفْلArabic
• отключвамBulgarian
• destravarPortuguese (BR)
• odemknoutCzech
• aufschließenGerman
• låse opDanish
• ξεκλειδώνωGreek
• abrir (con llave)Spanish
• lukust lahti tegemaEstonian
• باز کردنFarsi
• avataFinnish
• ouvrir, déverrouillerFrench
• לִפתוֹחַHebrew
• ताला खोलनाHindi
• otključatiCroatian
• kinyit (zárat)Hungarian
• membukaIndonesian
• opnaIcelandic
• aprireItalian
• 錠をあけるJapanese
• (잠긴 것을) 열다Korean
• atrakintiLithuanian
• atslēgtLatvian
• membuka kunciMalay
• ontsluitenDutch
• låse oppNorwegian
• otworzyćPolish
• باز کردنPersian
• پرانيستل، بيرته كول، خلاصول: برسيره كول: څرګندول، ښكاره كولPashto
• abrirPortuguese
• a deschide, a descuiaRomanian
• отпирать (ключом)Russian
• odomknúťSlovak
• odklenitiSlovenian
• otključatiSerbian
• låsa uppSwedish
• ไขThai
• kilidini açmakTurkish
• 開鎖Chinese (Trad.)
• відмикати, відпиратиUkrainian
• تالا کھولناUrdu
• mở khóaVietnamese
• 开锁Chinese (Simp.)