Licence vs License
Most of us often get confused between the terms licence and license. There certainly are some major differences between the two words, right from the usage, convention, and form of expression. Sometimes we use them interchangeably, though it is not recommended.
The first and foremost difference between the words licence and license is the convention. Licence is a UK convention, while license is a US convention. In the UK, licence is used as a noun, and in the UK convention, license becomes the verb. In the US version, license is used to imply both the noun and verb forms.
The following are example sentences to differentiate between the noun and verb form in the UK usage.
This shop is licensed to sell diamonds. Here the word licensed is being used as a verb.
John showed me his driving licence. Here the word licence is used as a noun.
In the US usage, both the sentences will have the same word – license.
As the usage can vary, it might be a bit difficult to remember the correct form of word. So, an easy way to remember whether the word is a noun or verb, is by following the spelling. The alphabet C comes before S, and similarly, N comes before V. So the word licence is a noun, and license is a verb. For better understanding, C denotes noun, and S denotes verb.