to lengthen stressed vowels and shorten/reduce unstressed vowels is challenging for most not English people practicing the language. Equally challenging is knowing which syllable to stress in a word. When learners are faced with a new word, they have never heard before, they base stress placement on many of the same strategies that native speakers do: analogy to phonologically similar words, stress patterns associated with classes of words or endings, or syllable structure.stress - stressing the wrong syllable - can make a word unrecognizable and completely disrupt the speaker's message. Not all errors involving misplaced stress are equally serious. Field (2005) reports that rightward misplacements of stress in two-syllabic words (e.g, stressing the second syllable of a woMAN) impaired intelligibility more than leftward misplacements (e.g., stressing the first syllable of ENjoy).rules for English stress placement are complex because English has borrowed many words from other languages, especially French, Latin, Spanish, and Greek, with different rules for assigning stress.difference between stress and intonation is that stress is the relative loudness of parts of speech where intonation is the variation in the pitch of different parts of speech. Linguists generally believe that there are about 3 to 4 levels of stress in the English language. In most cases, stress does not really change the meaning of words and is more or less associated with the dialect or accent being used. Still, there are some cases, where this assumption is not valid.Loudness has an inherent pitch component, stress as relative loudness sometimes has an added pitch variation. This extra pitch variation is called a pitch accent. Pitch variations are used to change the stress level of a word mostly due to rhythmic constraints imposed by the language.discovering the meaning of the notion of stress and related to this phenomenon facts, we have found out the next