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.
barrier
Noun
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A barrier is something that stops passage; it does not allow anything to get through it.
The barrier across the road stopped traffic from getting past it.
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A barrier is an obstacle; it is something to prevents progress.
The bug in the code was a barrier to us completing the project on time.
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A barrier is a boundary or limit.
The wall surrounding the jail was a barrier to all those who want to get out.