From Longman Business Dictionary
permitper·mit /ˈpɜːmɪtˈpɜːr-/ noun [countableC] LAWan official document stating that someone is allowed to do somethingThe government would issue permits for fishing.
permit to do somethingThe company requested a permit to operate a hazardous-waste treatment plant.
→ building permit → export permit → import permit → residence permit → work permit