What is a Spanish squiggle?
Keeping this in view, what does a squiggly line mean?
A tilde is a character on a keyboard that looks like a wavy line (~). The tilde has other uses as well. It is a diacritical mark in other languages, such as Portuguese, but it is also used in logic and math. When you put a tilde before a number, for example, you're saying that the number is approximate.
Beside above, what is the name of Ñ?
The tilde (~) is a fundamental unit in written language that has several uses. One of these is being a diacritic (or diacritical mark) placed over a letter to indicate a change in pronunciation, such as nasalization. The tilded 'n' ('ñ', 'Ñ'), in particular, developed from the digraph 'nn' in Spanish.
Ã/ã (a with tilde) is a letter used in some languages, generally considered a variant of the letter A. In Portuguese, Ã/ã represents a nasal near-open central vowel, [?~] (its exact height varies from near-open to mid according to dialect). The symbol is used for the nasal vowel /ã/ in Guaraní, Kashubian and Taa.