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Syllable Stress

Study syllable stress with these prefixes. The bold syllables are stressed. If the words are in red, the prefix is stressed. You will notice that this is not as common as having the stress on a different syllable. However, you can see that each prefix has a pattern.

Prefix
Meaning
Examples

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im
not, in, into
impractical, impose, important, impatient, impeach, immune, immediate
implicate, immigrant

ir
not
irrelevant, irrational, irregular, irresponsible

non
not
noninvasive, nonmetallic
nonstick, nonstop, nonprofit, nonfat, nonfiction*

pre
before
prepare, prefer, predetermine, present, prescribe
preference, prelude, premise, prejudice, preface, pregnancy
pre-pay, pre-heat*

re
again
report, republican, reorganize, repeat, repel, replace, relate

trans
across
transform,
transportation*, transcript, transit, transfer, translate, transplant**

un
not
unknown, unable, unbroken, uncertain, unconditional, unlawful, unpaid

under
below
underway, underwater, undertake, understand
underwear

uni
one
unique, universal,
union, unison

* These words with have stress on both the prefix and the second part of the word.
** This word is both a noun and verb. Stress the first syllable on the noun and the second on the verb.

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