Englishfor English speakers
broken
Adjective
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something that is broken is not as it should be because it has been damaged or injured
The broken cup lay in pieces on the floor.
After the crash his arm seemed broken.
A broken stone is apart(in more than one piece).
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.
tooth
Noun
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A tooth is a hard, white thing in your mouth. You use your teeth to chew food.
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A tooth is a sharp point sticking out of something and forms a row of sharp objects for cutting.
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A tooth is a rounded point on a gear that is used to transmit or receive force and motion to other gears.