Englishfor English speakers
technical
Adjective
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Technical problems, writing, or skills, are related to special knowledge that most people don't have.
Doctors use a lot of technical vocabulary. I wish they would explain things more easily.
Our computers had some kind of technical problem, so we had to call somebody to come and fix it.
A prima ballerina must have great technical knowledge of dance movement.
university
Noun
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A university is a school of advanced study that offers both undergraduate and graduate classes.
A doctor studies for many years at a university before going to work in a hospital.
of
Preposition
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Made using.
It is a house of cards.
Sofia
Proper noun
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Sofia is the capital city of Bulgaria.
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Sofia can also be a woman's name. It is a less common spelling of Sophia.