dois-pontos

Etymology
lit. 'two dots'. Compare 🇨🇬, 🇨🇬.

Noun

 * 1) colon (punctuation mark)

Usage notes

 * Although the use of hyphen is said to be facultative, only the hyphenated form is found in dictionaries and the orthographic vocabularies of both Academia Brasileira de Letras and Academia das Ciências de Lisboa.