Englishfor English speakers
chemical
Noun
—
A chemical is a basic substance that is used in or produced by mixing elements or other chemicals.
When you burn plastics, you put dangerous chemicals into the air.
The chemical industry in China is producing more and more useful paints, glues, and other products.
chemical
Adjective
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Of or about chemicals.
This test can detect small changes in the chemical composition of water.
and
Conjunction
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You use and to talk about two things at once.
I like singing and reading.
Mary and Jane went on a holiday together.
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You use and when you are listing a few things and you are now on your last item of the list.
I like singing, reading, cycling and playing soccer.
I used to like this girl from my class as she is pretty, gentle and caring.
—
And is used when you are putting two sentences together.
She came into the store, shouted at the cashier, and left.
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Used to show what happened after something else.
The alarm went off and I woke up.
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And is used to join certain numbers together.
Two hundred and thirty-five people went missing after the earthquake.
bacteriological
—
adjective
of or relating to bacteriology
weapon
Noun
—
A weapon is a tool that you use in a fight, such as a knife, a gun, or a bomb.
"Lay down your weapons and put your hands in the air," yelled the police.
the
Determiner
—
Used, instead of a, to reference something specific, already known to exist.
Compare "I read a book." and "I read the book."
—
Used with a stress, to show that the word following is special.
Are you the John Smith that I went to school with?
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Used with an adjective that acts like a noun to mean all of the people concerned
The poor are always with us.
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Used with superlatives forms of adjectives and adverbs.
You are the best.
effects
—
noun
(= personal effects)
property of a personal character that is portable but not used in business
she left some of her personal effects in the house
I watched over their effects until they returned
of
Preposition
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Made using.
It is a house of cards.
their
Pronoun
—
If something belongs to them it is their thing.
That's not their car, it's ours.
possible
Adjective
—
If something is possible, it is able to be done; doable; not impossible.
Life on other planets is possible.
—
If something is possible, it is acceptable.
Zero is one possible solution.
—
If something is possible, it is likely.
Is that possible?
use
Verb
—
Make use of; apply.
I use oil to cook.
This hammer is used to hit the nails.
—
To treat as unimportant, abuse; used about people.
She only uses him to do the house chores.
use
Noun
—
A way to apply something; an application.
They put it to good use.
—
A time when something is applied.
This battery will last for 2000 uses.