Englishfor English speakers
theoretical
Adjective
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Theoretical is about theory rather than its practical application.
Entanglement is important but difficult to study, both in terms of a theoretical understanding and doing experiments.
capacity
Noun
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The capacity of a container, room, etc. is how much it can hold.
The capacity of the bottle is 500 mathml/math.
The capacity of the hard drive is 120 GB.
I'm sorry, this pool only has a capacity of 100 people and I can't let any more in.
If you fill it to capacity, you won't be able to carry it.
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The capacity of someone or something to do something is the ability to do it.
I was impressed by his energy and capacity for hard work.
Since the head injury he has lost his capacity to learn new names.
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The capacity of a factory or business is how much it can produce.
It will soon be necessary to increase capacity at our Toronto plant to meet Canadian demand for the product.
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If someone does something in a particular capacity, they are doing it in that role.
I am not writing to you in my capacity as your doctor, but as a friend.
Sometimes I make decisions in my capacity as father that I don't like in my capacity as husband.
He's been hired in a temporary capacity.