- a diacritic (~) placed over an n, as in Spanish mañana, to indicate a palatal nasal sound or over a vowel, as in Portuguese são, to indicate nasalization.
- swung dash.
- a symbol (∼) indicating equivalency or similarity between two values.
- a similar symbol indicating negation.
- the diacritical mark (~) placed over a letter to indicate a palatal nasal consonant, as in Spanish señor. This symbol is also used in the International Phonetic Alphabet to represent any nasalized vowel
