Word stress refers to how stress is distributed among the syllables of a word. Multisyllabic words have more than one stressed syllable, but only one receives primary stress while others receive secondary stress or almost no stress. The factors that determine a word's stress pattern include its origin, part of speech, and whether it has affixes added. Prefixes typically do not change the stress of the base word, while suffixes can have no effect on stress, take the primary stress themselves, or cause the stress pattern to shift to a different syllable in the base word.

2. Word stress- is the manner in which stresses are
distributed on the syllables of a word.
 The discussion of vowels provides a good foundation
for understanding word stress.
 Multisyllabic words have more than one stressed
syllable but only one of those syllables receives
primary stress. Other(s) receives secondary stress or
almost no stress.
example: communication

3.  Factors of English word stress patterns: origin of a
word, the part of the speech and affixation.
In general terms:
1. Stress falls more often on the root or base word and
less often on a prefix:
beLIEVE preDICT comPLAINT
2. Compound nouns tend to make primary stress on the
first element and secondary stress on the second:
AIRplane BUS stop comPUter disk

4. 3. Suffixes can either
a. Have no effect on stress
BEAUty --- BEAUtiful
deLIVer --- deLIVerance
perFORM –perFORMer
b. take the primary stress themselves
picturESQUE trusTEE enginEER

5. c. Cause the stress pattern in the stem to shift to a
different syllable
PERiod --- periODic
SEquence --- seQUENtial
ORganize --- organiZAtion

6. The end.
Thank you!