Englishfor English speakers
small
Adjective
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Small means little, not big. The number of inches or centimetres from one end of it to the other end is not many.
A mouse is a small animal. A baby mouse is very small.
letter
Noun
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A letter is a symbol which makes up part of a word.
The word fly has 3 letters: f, l and y.
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A letter is a written message or note.
I received a letter through the post.
x
Noun
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X is the twenty-fourth (24th) letter of the alphabet.
"x" comes after "w" and before "y"
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This is the Roman numeral for ten (10). It may be written as X or x.