Englishfor English speakers
army
Noun
—
The people and organisation, normally in a government, which fights wars.
The army fought in Iraq.
He joined the army when he was 19.
—
A large number of people working towards the same thing.
It took an army of people to build that bridge.
of
Preposition
—
Made using.
It is a house of cards.
the
Determiner
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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.
republic
Noun
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A republic is a country that has leaders elected that are by the people.
Many have pointed out that the United States is a republic, not a pure democracy.
Vietnam
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noun
a communist state in Indochina on the South China Sea; achieved independence from France in 1945
—
noun
a prolonged war (1954-1975) between the communist armies of North Vietnam who were supported by the Chinese and the armies of South Vietnam who were supported by the United States