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.
hollow
Adjective
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If something has nothing inside of it, it is hollow.
The box is hollow.
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If the inside of a tree or log has rotted away so the middle is empty, it is hollow.
The rabbit ran through the hollow log.
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Lacking enthusiasm or cheer
"He let out a hollow laugh"
leg
Noun
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Your legs are the two long parts of your body that you move to walk, or a similar body part on an animal.
I lost a leg in the war.
The footballer broke a leg during the game.
The bus stopped and everybody went out to stretch their legs.
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A leg is part of a piece of furniture, such as a table, on which the furniture stands.
I can see an ant crawling up the leg of the table.
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A leg is part of a tour or journey.
The band had to cancel the German leg of their European tour.