Igbo is a language spoken in Nigeria by the Igbo people (Ndi Igbo). It is written in the Roman script and is a tonal language like Yoruba  and Chinese, with two distinctive tones; high and low.

Reading and writing Igbo is not very widespread and not much Igbo literature exists. Igbo is mainly a spoken and colloquial language today, The first book in Igbo, Isoama-Ibo a primer, was produced in 1857 by Samuel Ajayi Crowther.

There are numerous Igbo dialects, some of which are not mutually intelligible. The many dialects have not helped the desired emergence of a single spoken or written Igbo.

Nigerian Pidgin is a version of English and ethnic Nigerian languages spoken as a kind of lingua franca across Nigeria and is referred to simply as "Pidgin",  "Broken English" or "Broken".

It is estimated that Nigerian Pidgin is the native language of approximately 3 to 5 million people and is a second language for at least another 75 million

Yoruba is the native tongue of the Yoruba people, it is spoken in Nigeria, Benin, Togo and among communities in Brazil, Sierra Leone and Cuba. Yoruba language has a distinction between human and non-human nouns e.g. tani for human nouns (‘who?’) and kini for non-human nouns (‘what?’).

Yoruba has over fifteen dialects and standard Yoruba is the written form of the language and the standard variety learnt in school. Standard Yoruba has its origin in the 1850's, when Samuel Ajayi Crowther, the first African Bishop, published a Yoruba grammar and started his translation of the Bible to Yoruba 

Native speakers of Hausa are found in the north of Nigeria, but the language is widely used as a lingua franca in a much large part of  West Africa, particularly amongst Muslims.

Hausa is now customarily written in the Latin though Qur'anic schools use writing in an adaptation of the Arabic alphabet.