Bilabial fricatives and the bilabial approximant do not exist in standard English, but do occur in many languages. For example, the Spanish consonant spelt b or v is pronounced as a voiced bilabial approximant between vowels.
Labial consonants are divided into two subplaces of articulation:
Very few languages, however, make a distinction on purely this basis. One example is Ewe, with both kinds of fricatives. For by far the most other languages in the world, labial by itself is a sufficient phonemic specification. Whether the sounds will actually be bilabial or labiodental depends on the language, but the most common pattern is that exhibited in English: bilabial stops and nasals, labiodental fricatives.