The BBC is launching 11 new language services and one of them is English-based Pidgin, which is one of the most widely spoken languages across West Africa, even though it is not officially recognised.
What is Pidgin?
The Oxford English Dictionary definition of Pidgin is: A language containing lexical and other features from two or more languages, characteristically with simplified grammar and a smaller vocabulary than the languages from which it is derived, used for communication between people not having a common language; a lingua franca.
Simply put, Pidgin English is a mixture of English and local languages which enables people who do not share a common language to communicate.
Most African countries are made up of numerous different ethnic groups who do not necessarily have a lingua franca, so Pidgin has developed.
It is widely spoken in Nigeria, Ghana, Equatorial Guinea and Cameroon.
There are differences, because English is mixed with different languages in each country but they are usually mutually intelligible.
A form of Pidgin has developed into a mother tongue for the Krio community in Sierra Leone, which non-Krios can find difficult to understand.
What is so special about Pidgin?
"It's quite fluid, it keeps changing all the time and it's expressive as well," says Bilkisu Labran, head of the new BBC language services for Nigeria.
"Sometimes, if you don't have a word for something, you can just create an onomatopoeic sound and just express yourself. And it will be appreciated and understood.
"I can talk about the gun shots that went 'gbagbagba' and you get my gist. So it vividly captures it instead of describing or trying to find a word to say: 'The gun shots were very loud'."
Also, Pidgin hardly follows standard grammatical rules so "you can lose things like verbs", by saying: 'I dey go' to mean 'I'm going'.
Other examples are:
I wan chop ( I want to eat)
Wetin dey 'appen? (What is happening?)
I no no (I do not know)
Where you dey? (Where are you)
How many people speak it?
It is difficult to know the precise number of speakers across the region as it is not formally studied in schools and is spoken in varying degrees of proficiency.
But many millions of people undoubtedly speak it on a daily basis, especially young people.
Nigeria is estimated to have between three and five million people who primarily use Pidgin in their day-to-day interactions. But it is said to be a second language to a much higher number of up to 75 million people in Nigeria alone - about half the population.
Although it is commonly spoken, Pidgin is not an official language anywhere except Sierra Leone, where Krio does have a formal status.
In many schools, children are disciplined if they are caught speaking Pidgin, rather than English.
However, some local radio stations do broadcast in Pidgin.
How did it originate?
West African Pidgin English, also called Guinea Coast Creole English, was a language of commerce spoken along the coast during the Atlantic slave trade in the late 17th and 18th Centuries.
This allowed British slave merchants and local African traders to conduct business.
It later spread to other parts of the West African colonies, becoming a useful trade language among local ethnic groups who spoke different languages.