قرارداد
type: Concept
narrower: جواز قرارداد
preferred label: agreement @en

لزوم قرارداد
type: Concept
preferred label: irrevocability of contract @en
related: جواز قرارداد

جواز قرارداد
type: Concept
broader: قرارداد
preferred label: revocability of contract @en
related: لزوم قرارداد