tilde

US /ˈtɪl.də/
UK /ˈtɪl.də/
"tilde" picture
1.

波浪號, 代字號

a mark (~) used over a letter, especially in Spanish and Portuguese, to indicate a particular pronunciation, such as palatalization of an 'n' in Spanish or nasalization of a vowel in Portuguese.

:
The Spanish word 'señor' has a tilde over the 'n'.
西班牙語單詞“señor”的“n”上帶有波浪號
In Portuguese, the tilde indicates a nasal sound, as in 'pão'.
在葡萄牙語中,波浪號表示鼻音,如“pão”中所示。
2.

波浪號, 近似符號

a symbol (~) used in mathematics to denote approximation, similarity, or equivalence.

:
In mathematics, the symbol ~ means 'approximately equal to'.
在數學中,符號~表示“約等於”。
The two functions are related by a tilde, indicating they are asymptotically equivalent.
這兩個函數通過波浪號關聯,表明它們漸近等價。