jailbreak - definition and synonyms

verb [transitive] 

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/ˈdʒeɪlˌbreɪk/
present tense
I/you/we/theyjailbreak
he/she/itjailbreaks
present participlejailbreaking
past tensejailbroke
past participlejailbroken
  1. to unlock the operating system of a mobile phone or other device that uses iOS so that it can run software it is not normally authorized to use because of restrictions imposed by the manufacturer

    I once jailbroke my iPhone so I could customise it, but after a few months I went back to the standard OS as I preferred it.

    See also root2