Englishfor English speakers
supervision
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noun
management by overseeing the performance or operation of a person or group
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.
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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.
vigilance
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noun
(= watchfulness, wakefulness)
the process of paying close and continuous attention
wakefulness, watchfulness, and bellicosity make a good hunter
vigilance is especially susceptible to fatigue
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noun
(= weather eye)
vigilant attentiveness
he keeps a weather eye open for trouble
commission
Noun
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A commission is a group of people who work together to research or manage something for a government.
She was recently appointed to head the European commission on climate change.
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A commission is money that a salesperson receives for each sale.
You may have to pay commission to convert the dollars into local currency on your travels.
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The official appointment of an officer in a nation's armed forces.
Brummell resigned his commission when his regiment was posted to Manchester.
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A commission is a task to be undertaken.
My commission was only to deliver this message.
commission
Verb
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If you commission someone to do or create something, you formally ask them to do it.
The report commissioned by the Department of Health in 1989, contains guidelines on how best to manage and organise waiting lists.