“Licence” is the British English NOUN – The bar has received a licence to sell alcohol.

“License” is the British English VERB – We are now licensed to sell alcohol.

You can remember this because it is the same as “advice” (noun) and “advise” (verb). But of course, unlike advice/advise, licence/license are both pronounced the same.

“Licensor” and “Licensee” always have an s.

In American English, however, “license” is used for both the noun and the verb.

You may think this is very sensible, but check out the next tip on “practice” and “practise”.