simple past tense and past participle of permission

Having permission.

present participle of permission

A system for, or process or result of, granting authorization.

(law) The legally compensable destruction of the value of property through the failure of a life tenant to maintain the property to the point where it falls into disrepair.

plural of permissive-action link

A security device to prevent unauthorized arming or detonation of a nuclear weapon.

(Britain, construction, law) Legal permission granted by a government authority to construct on one's land, or to change the use of the land.

plural of permission slip

(US, education) A paper form that a school sends home with a student to a parent, onto which the parent provides authorization for the student to attend a certain event, such as a field trip.