Languages of the United Kingdom

The United Kingdom does not have a constitutionally defined official language. English is the main language (being spoken monolingually by more than 90% of the UK population) and is thus the de facto official language.
Though the UK does not de jure have an official language, the predominant spoken language is English, a West Germanic language descended from Old English featuring a large number of borrowings from Old Norse, Norman French and Latin. The English language has spread across the world (largely due to the British Empire) and has thus become the business language of the world. Worldwide, it is taught as a second language more than any other.
The other indigenous languages of the UK are Scots (which is closely related to English) and four Celtic languages. The latter fall into two groups: two P-Celtic languages (Welsh and Cornish); and two Q-Celtic languages (Irish and Scottish Gaelic). Celtic dialectal influences from Cumbric persisted in Northern England for centuries, most famously in a unique set of numbers used for counting sheep (see Yan Tan Tethera).
Immigrant languages constitute for up to 10% of the UK’s population, French is spoken by 2.3% of the country’s population, 1.0% of Britons speak Polish reflecting the recent mass migration to the UK. 0.9% of the UK’s population speak German and 0.8% Spanish. The majority of other foreign languages spoken in the UK originate from Europe, Asia and Africa. A large percentage of the immigrants to the UK come from Anglophone countries (such as Nigeria, Jamaica, Hong Kong and the Philippines), which is why there is not a great deal of diversity between some of the country’s ethnic minority communities.