quantum tunnel
idiomTo move or travel from one point or direction to another in a very quick, rapid, or effortless manner.
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ear tunnel
A round piece of jewelry with a hole in the middle, which fits into a stretched earlobe.
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light at the end of the tunnel
A better situation after long hardship.
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wind tunnel testing
The application of a rigorous testing regime to a new corporate idea, structure or project to determine if it is viable and fit for purpose.