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# Word

A word is a group of characters from the alphabet that has a meaning.

`2.5 + 5`

The sentence has three words: the number `2.5`, the `+`, and the number `5`.

The rules for forming words from the characters in a sentence are simple, and for now, common sense will suffice in recognizing the words in a sentence. There are some complications that will be dealt with in later sections.

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