tilde

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

波浪号, 代字号

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'.
西班牙语单词“señor”的“n”上有一个波浪号
In Portuguese, the tilde indicates a nasal sound, as in 'pão'.
在葡萄牙语中,波浪号表示鼻音,如“pão”中所示。
2.

波浪号, 近似符号

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

:
In mathematics, the symbol ~ means 'approximately equal to'.
在数学中,符号~表示“约等于”。
The two functions are related by a tilde, indicating they are asymptotically equivalent.
这两个函数通过波浪号关联,表明它们渐近等价。