Englishfor English speakers
restriction
Noun
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A restriction is something that restricts or limits something else.
The restrictions on parking in the city during snowstorms make it almost impossible to find parking anywhere.
Because one student had bad food allergies, the school put a restriction on what kinds of food the other students were allowed to bring for lunch.
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A restriction is a rule or limit that tells you what you cannot do.
On his first day at work, Kwame's new boss said: "Let me tell you about our restrictions. No wearing jeans. No taking breaks. No sitting down at work. Oh, and you are not allowed to take any days off for the next six months. Welcome."
of
Preposition
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Made using.
It is a house of cards.
hazardous
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adjective
(= risky, wild)
involving risk or danger
skydiving is a hazardous sport
extremely risky going out in the tide and fog
a wild financial scheme
substance
Noun
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What a thing is made of; the essential or most important part of anything. Everything is made of substances.
has water, sugar, fat and other substances in it.
directive
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noun
a pronouncement encouraging or banning some activity
the boss loves to send us directives
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adjective
(= directing, directional)
showing the way by conducting or leading; imposing direction on
felt his mother's directing arm around him
the directional role of science on industrial progress