Afrihili (Ni Afrihili Oluga 'the Afrihili language') is a constructed language designed in 1970 by Ghanaian historian K. A. Kumi Attobrah (Kumi Atɔbra) to be used as a lingua franca in all of Africa. The name of the language is a combination of Africa and Swahili. The author, a native of Akrokerri (Akrokɛri) in Ghana, originally conceived of the idea in 1967 while on a sea voyage from Dover to Calais. His intention was that "it would promote unity and understanding among the different peoples of the continent, reduce costs in printing due to translations and promote trade". It is meant to be easy for Africans to learn.

Afrihili draws its phonology, morphology and syntax from various African languages, particularly Swahili and Akan (Attobrah's native language). The lexicon covers various African languages, as well as words from many other sources "so Africanized that they do not appear foreign", although no specific etymologies are indicated by the author. However, the semantics is quite English, with many calques of English expressions, perhaps due to the strong English influence on written Swahili and Akan. For example, mu is 'in', to is 'to', and muto is 'into'; similarly, kupitia is 'through' (as in 'through this remedy'), paasa is 'out' (as in to go outside), and kupitia-paasa is 'throughout'—at least in the original, 1970 version of the language.

The language uses the Latin alphabet with the addition of two vowel letters, ⟨Ɛ ɛ⟩ and ⟨Ɔ ɔ⟩, which have their values in Ghanaian languages and the IPA, [ɛ] and [ɔ]. Foreign names are spelled out phonetically rather than in the original orthography, so for example 'Hastings' is spelled Hestins. There are two digraphs, ⟨ch⟩ and ⟨sh⟩, which have their English and Swahili values, [tʃ] and [ʃ]. J and y also have their English and Swahili values, [dʒ] and [j]. Ng is not a digraph, but pronounced as in English finger, [ŋɡ].

Vowels are a ɛ e i ɔ o u. Doubled vowel letters appear to be sequences, not long vowels. Consonants are p t ch k, b d j g, m n ny, f s sh h, v z, l r y w.

There is no tone. Stress is on the second-last vowel. Exclamation marks come at the beginning of a clause, which ends in a comma or period as normal; question marks come at the end.

The grammar is similar to Swahili, but in addition there is the 'vowel triangle', which is central to Afrihili inflection:

             a
           /   \
          u     e           ɛ
         /       \          
        ɔ __ o __ i

Many grammatical processes are accomplished by exchanging a vowel with its directional opposite on the triangle: a for o, u for i, e for ɔ, and vice versa. For example, a verb can be made into an adjective by changing its final vowel in this manner: from pinu 'to determine' comes the adjective pini 'determinate'. Ɛ does not participate in these swaps, but is used in other situations (below).

All nouns, and only nouns and adjectives modifying nouns, begin with a vowel. In the singular this will be different from the final vowel of the word; the plural is formed by making it the same as the final vowel. For example, omulenzi 'boy' becomes imulenzi 'boys'; similarly, oluga is 'language' and aluga 'languages'.

Zuri lu – Good day (alu 'a day')

Zuri zinga – Good morning

Zuri masa – Good afternoon

Zuri dani – Good evening

Zuri bali – Good night

Jo koni – Go at once

! Afuraho – Cheers!

Sama papa obeka al dude – Find a good place to eat

Kama mingipewa l'arafi gaba milijo paasa, mingijira lε. – If I had received his letter before I went out, I would have waited for him.

Kwaku na Akua mai atapiro atajirin wɛna liwa yide fu kusa. Ni atapiro atajirin mai imulezi ibarin wɛna yɛ f'amotsoala. Ni amotsoala yɛ arenobo kika Kwaku na Akua baitu fu duka yɛ ukuetu upapam tare.

Ku atapiro mai afu okisiwa so nehi nesa bɛ, na ni imao no inta tabonadi you. Fumai arafi f'amotsoala tɔ okisiwa.

The following text, from a 1971 newsletter, was clipped on its left margin. Missing words are in brackets.