A caliphate (Arabic: Ø®ÙÙØ§ÙØ© khilÄfa) is an area containing an Islamic steward known as a caliph (Arabic: Ø®ÙÙÙÙØ© khalÄ«fah pronunciation (info â¢ help))âa person considered a religious successor to the Islamic prophet, Muhammad (Muhammad ibn Ê¿AbdullÄh), and a leader of the entire Muslim community.
A consonant is a speech sound that's not a vowel. The sound of a consonant is produced by a partial or complete obstruction of the air stream by a constriction of the speech organs. In writing, a consonant is any letter of the alphabet except a, e, i, o, u, and sometimes y.
1. vowel-a speech sound made with the vocal tract open. vowel sound. speech sound, phone, sound - (phonetics) an individual sound unit of speech without concern as to whether or not it is a phoneme of some language.