Englishfor English speakers
seminar
Noun
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A seminar is a small class in a college or university where the teacher and students discuss an issue.
The math seminar begins in an hour.
on
Preposition
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positioned at the upper surface of, touching from above
The apple is on the table.
—
at the date of
Tim was born on the 4th of July.
—
along, forwards (continuing an action)
drive on, rock on
—
about, dealing with the subject of
I have a book on history.
There was a World Summit on the Information Society a few weeks ago.
—
touching; hanging from
I have no money on me at the moment.
I would like to eat the fruit on the trees.
—
because of, due to
He was arrested on suspicion of bribery.
I contacted Joanne on a hunch that she would know about it.
The stock price increased on news of a new product.
on
Adjective
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If something is on, it is active, functioning or operating.
The television is on.
The lights are on, so it is very bright.
earthquake
Noun
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An earthquake is a natural event that causes the ground to shake up and down, and sometimes, will destroy buildings.
The earthquake ripped a crack in the road and destroyed half of the building that I live in.
vulnerability
Noun
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A vulnerability is when a person or thing can be attacked or harmed.
Microsoft Windows has many vulnerabilities.