Relaxed pronunciation

Relaxed pronunciation (also called condensed pronunciation or word slurs) is a phenomenon that happens when the syllables of common words are slurred together. It is almost always present in normal speech, in all natural languages (not in some constructed languages such as Loglan or Lojban, which are designed so that all words are parsable).
Shortened forms of words and phrases (such as English contractions) can be considered to derive from relaxed pronunciations, but a phrase with a relaxed pronunciation is not the same as a contraction. In English, where contractions are common, they are considered part of the standard language and accordingly used in many contexts (except on very formal speech or in formal/legal writing); however, relaxed pronunciation is nonstandard and may sound uneducated. This is also sometimes reflected in writing: contractions have a standard written form, but relaxed pronunciations may not.