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Tilde

A tilde is a symbol (~) used in various contexts, including writing systems, mathematics, and computer programming. It is commonly used as a diacritical mark to modify the pronunciation or meaning of a letter or word.

Senses:

1. Punctuation:

In punctuation, a tilde (~) often represents a wave-like symbol used in textual writing. It can be used to denote approximation, alternation, or as a symbol for "approximately."

Example sentence: The distance from the Earth to the moon is ~238,900 miles.

2. Linguistics:

In linguistics, the tilde is used as a diacritical mark over letters to indicate phonetic nasalization or velarization.

Example sentence: In Spanish, the letter "ñ" is pronounced as "ny" with a nasalized "n" sound.

3. Computer Science:

In computer programming, the tilde symbol (~) is used for various purposes, such as representing bitwise NOT, home directory, or as an operator in regular expressions.

Example sentence: The regular expression pattern /a~/ matches any string that ends with the letter "a".

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