Englishfor English speakers
classification
Noun
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A classification the system of groups that are based on the characteristics of the group members.
Linnaeus was known for his system of plant classification, which ordered plants according to their sexual parts.
The Library of Congress Classification puts these books together.
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Classification is the process of organizing things into groups based on their characteristics.
The information that was originally on our website was based on an earlier classification.
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A classification is one group of things that have similar characteristics.
The raises are going out mostly to employees in different skill classifications.
by
Preposition
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near or next to.
The mailbox is by the bus stop.
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at some time before (the given time).
Be back by ten o'clock!
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if something is done by somebody, it is done through their action
The matter was decided by the chairman.
The boat was swamped by the water.
He was protected by his body armour.
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if something is created by somebody, they are the creator, author, etc.
There are many well-known plays by William Shakespeare.
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shows how someone does something
I avoided the guards by moving only when they weren't looking.
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using the rules or logic of.
I sorted the items by category.
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with a change of. In this case, by shows how much something has changed.
Our stock is up by ten percent.
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shows how slowly, or how quickly, someone does something (used in the form "X by X" or "by Xs")
We went through the book page by page.
We crawled forward by inches.
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If you multiply mathx/math by mathy/math, you multiply mathx/math × mathy/math.
Five multiplied by seven is 35.
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If you divide mathx/math by mathy/math, you find how many mathy/maths are in mathx/math.
35 divided by seven is five.
broad
Adjective
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If something is broad, the distance from one side to the other is large.
Her shoulders were swimmer's shoulders, strong and broad.
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If something is broad, it includes a lot.
They have laws now which give very, very broad powers to the President.
We have a range of activities broad enough to include teachers in all program areas and in all grade levels.
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Broad senses, definitions, agreements, etc. are general, not detailed.
We accept a broad definition of music to include any sound organized in an meaningful way.
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A broad area is a large area.
They walked through the broad field behind the building.
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A broad accent is one that is very noticeable.
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If something happens in broad daylight, it happens during the day where many people can see it.
broad
Noun
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A broad is a woman.
There's this German broad, fuckin' bitch, who told me I'm going to jail for her pushin' her stupid ass.
economic
Adjective
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(usually before a noun; not usually gradeable) About or relating to the economy, business, money, etc.
The reduction in unemployment and continued economic growth are good news for workers.
As our two countries do more and more business, we must begin to match our economic policies.
Some people are in economic trouble and have difficulty paying their bills.
If you start saving money while you’re young, then you are setting yourself up for economic success.
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If a business activity is economic, it makes enough money.
As a small business, do you think it would be economic for us to advertise on TV?
category
Noun
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A category is a group of people or things that are the same in some way.
The music business tries to put music into various categories, such as rock, pop, jazz, etc.