Englishfor English speakers
weak
Adjective
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Weak is used to describe something that does not have a lot of strength.
The child was too weak to move the boulder.
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Something that is weak does not have a strong taste.
This tea tastes weak and watery. Do you have anything stronger?
diffusion
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noun
(physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration
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noun
the spread of social institutions (and myths and skills) from one society to another
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noun
(= dissemination)
the property of being diffused or dispersed
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noun
(= dispersion)
the act of dispersing or diffusing something
the dispersion of the troops
the diffusion of knowledge