Main Entry:

til·de

Pronunciation:

\ˈtil-də\

Function:

noun

Etymology:

Spanish, from Medieval Latin titulus tittle

Date:

circa 1864

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 nasality2 a: 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