The term two dots or double dot may refer to:

Orthography

Colon (punctuation) The colon is a punctuation mark consisting of two equally sized dots aligned vertically. A colon often precedes an explanation, a list, or a quoted sentence. It is also used between hours and minutes in time, between certain elements in medical ...

, the punctuation mark () *

Two dots (diacritic) Diacritical marks of two dots , placed side-by-side over or under a letter, are used in a number of languages for several different purposes. The most familiar to English language speakers are the diaeresis and the umlaut, though there are num ...

, a mark used with a base letter to indicate that its pronunciation is somehow modified () **

Diaeresis (diacritic) The diaeresis ( ; is a diacritical mark used to indicate the separation of two distinct vowels in adjacent syllables when an instance of diaeresis (or hiatus) occurs, so as to distinguish from a digraph or diphthong. It consists of two dots ...

, the diacritic mark used to denote the separation of two consecutive vowels **

Umlaut (diacritic) The umlaut () is the diacritical mark used to indicate in writing (as part of the letters , , and ) the result of the historical sound shift due to which former back vowels are now pronounced as front vowels (for example , , and as , , and ). ...

, the diacritic mark to indicate the vowel-fronting sound change ***

Metal umlaut A metal umlaut is a diacritic that is sometimes used gratuitously or decoratively over letters in the names of mainly hard rock or heavy metal bands—for example, those of Blue Öyster Cult, Queensrÿche, Motörhead, the Accüsed, Mötley Crüe ...

, gratuitous diacritic used in the names of some rock bands * Ethiopic wordspace (), a word divider in Geʽez script * Question mark#History, two vertical dots used to indicate a question in fifth century Syriac manuscripts

Other

Two Dots (game) ''Two Dots'' is a puzzle video game for iOS and Android, developed and published by American indie studio Playdots, Inc. The Windows 10 Mobile and Microsoft Windows versions are no longer supported. It is the sequel to ''Dots''. It was released ...

, a puzzle game for Android and IOS *

Leader (typography) A leader in typography is a series of characters, usually lines of dots or dashes, that are used as a visual aid to connect items on a page that might be separated by considerable horizontal distance. For example, dot leaders are often used in t ...

Row of dots used in tables of contents (usually more than two) *

Ellipsis (computer programming) In computer programming, ellipsis notation (.. or ...) is used to denote ranges, an unspecified number of arguments, or a parent directory. Most programming languages require the ellipsis to be written as a series of periods; a single (Unicode) ...

, a notation (two or three dots) is used to denote programming ranges, an unspecified number of arguments * A parent directory in a

relative path A path is a string of characters used to uniquely identify a location in a directory structure. It is composed by following the directory tree hierarchy in which components, separated by a delimiting character, represent each directory. The del ...

* A second derivative in

Newton's notation In differential calculus, there is no single uniform notation for differentiation. Instead, various notations for the derivative of a function or variable have been proposed by various mathematicians. The usefulness of each notation varies with t ...

Orthography

Other

See also