The word for today is…
tilde (noun) -
1: a mark ˜ placed especially over the letter n (as in Spanish señor sir) to denote the sound \nʸ\ or over vowels (as in Portuguese irmã sister) to indicate nasality
2a: the mark used to indicate negation in logic and the geometric relation "is similar to" in mathematics
b: the mark used to indicate an approximate value
Source : Merriam-Webster
Etymology : The terms piña colada and La Niña share more than just a "cool" factor: both are Spanish loan words whose spellings include tildes, those wavy marks which in these examples are placed over the letter n to indicate a blend of the sounds of n and y. Tilde is itself a Spanish borrowing rooted in the Latin titulus, an ancestor of the English words title and titular that means "title" or "inscription." The Spanish and English applications of tilde are distinct. In Spanish, tilde refers most commonly to the accent symbol, while ñ is its own member of the alphabet (pronounced "EN-yay"). In contrast, English speakers use tilde specifically for the aforementioned mark. In addition to functioning as a diacritic—that is, a mark paired with a character to indicate pronunciation—the tilde may be used as an independent
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