Vowel whose quality does not change over the duration of the vowel is called a monophthong. Monophthongs are sometimes called "pure" or "stable" vowels. A vowel sound that glides from one quality to another is called a diphthong, and a vowel sound that glides successively through three qualities is a triphthong. All languages have monophthongs and many languages have diphthongs, but triphthongs or vowel sounds with even more target qualities are relatively rare cross-linguistically. English has all three types: the vowel sound in "hit" is a monophthong , the vowel sound in "boy" is in most dialects a diphthong , and
Professional wrestling match types from future matches until one competitor remains. Professional wrestling match types Many types of wrestling matches, sometimes called "concept" or "gimmick matches" in the jargon of the business, are performed in professional wrestling. Some of them occur relatively frequently while others are developed so as to advance an angle and such match types are used rarely. Because of professional wrestling's long history over decades, many things have been recycled (many match types often being variations of previous match types). These match types can be organized into several loose groups. The singles match is the most basic of all professional wrestling