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.
touch
Verb
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If you touch something, you feel it with your hand.
Don't touch the oven -- it's hot and you will get a burn.
—
If you touch something, you move so near to it that there is no space between you and it.
of
Preposition
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Made using.
It is a house of cards.
spice
Noun
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Spice is something you put on food to make it taste better.