/ is a letter which combines the common letter G with a tilde.
The character does not exist in most alphabets. Examples of alphabets with this letter are:
The letter is also occasionally used as a substitute for G with breve in languages such as Turkish.

Computer encoding

encodes g with tilde with a combining diacritical mark, rather than a precomposed character. As such, the tilde may not align properly with some typefaces and systems. Additionally, owing to the difficulties in inputting this character, Guarani speakers often omit the diacritic altogether.
LetterUnicode sequenceHTMLWindows
U+0047 U+0303G̃
U+0067 U+0303g̃