Anonymous“What is the difference between the vowel sounds "yoo" and "oo"?
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Strange question, don't you think? The first one has a "y" sound at the beginning; the second one doesn't. The "y" sounds like an "ee" pronounced very quickly so that it glides into the "oo".
youth starts with the "yoo" sound.
oops starts with the "oo" sound.
You might look them up and listen to them at www.m-w.com.
CJ