Englishfor English speakers
a
Determinative
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A is used when the following word could be any of a certain type.
Compare "A book I saw on the shelf" and "The book I gave you yesterday".
a
Noun
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A is the first letter of the alphabet.
The letter "a" comes before "b".
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In some schools, an A is a very high grade.
Ron got an A on his earth science test.
sack
Noun
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A sack is a bag used to hold things.
She opened the brown paper sack and put the shopping in it.
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To sack is to plunder and pillage a captured town or city.
The sack of Rome.
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The sack is a slang word for bed.
I'm tired. I think I'll hit the sack and get some sleep.
sack
Verb
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To plunder or pillage a captured town or city.
The barbarians sacked Rome.
of
Preposition
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Made using.
It is a house of cards.
potato
Noun
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A potato is a food that grows under the ground, which is round and white inside.
We usually eat meat and potatoes.