(~es)
1.
A ~ is a letter or group of letters, for example ‘un-’ or ‘multi-’, which is added to the beginning of a word in order to form a different word. For example, the ~ ‘un-’ is added to ‘happy’ to form ‘unhappy’. Compare affix and suffix .
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2.
A ~ is one or more numbers or letters added to the beginning of a code number to indicate, for example, what area something belongs to.
To telephone from the US use the ~ 011 33 before the numbers given here...
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