The Dagger Symbol (†): Meaning, Uses, and Origins

The dagger symbol (†) is a typographical mark primarily used to indicate a footnote or reference in printed text. Resembling a downward-pointing knife with a short crossbar, it acts as the first alternative to the asterisk (*) when citing secondary information. Beyond basic typography, writers frequently use the dagger to denote a person's year of death or to mark a biological species as extinct.

The dagger originated as a variant of the obelus, a mark used by ancient Greek scholars to flag dubious or spurious text in classical manuscripts. Over time, European typographers adapted its shape into the distinctive knife-like character we recognize today. Because it visually resembles a Christian cross, it naturally transitioned into a genealogical marker in European texts to indicate a date of death, a tradition that remains standard in modern publishing.

In the Unicode standard, the dagger is officially cataloged as U+2020 and belongs to the General Punctuation block. It is a standard text character rather than an emoji, rendering in monochrome across all basic fonts. Web developers and programmers can easily summon it into text using the HTML entity †.

The symbol carries specific meanings across different disciplines. Typography heavily relies on the dagger as a footnote indicator, placing it second in the traditional reference sequence (*, †, ‡, §, ‖, ¶). In biology and paleontology, placing a dagger next to a species name, like the Dodo (†Raphus cucullatus), signifies that the organism is completely extinct. In chemistry, it denotes a transition state or activated complex during a chemical reaction. On social media platforms and in internet culture, users occasionally deploy the symbol for its gothic, edgy aesthetic, though people looking to convey literal danger usually opt for the colorful dagger emoji (🗡️).

Typing the dagger symbol is straightforward once you know the right shortcuts. On a Mac keyboard, simply press Option + T. On Windows devices, hold the Alt key and type 0134 on the numeric keypad. On iOS and Android smartphones, you can usually find the dagger tucked away in the secondary punctuation menus, or you can copy and paste it directly from a web browser.

The dagger is closely related to the double dagger (‡), which features a second crossbar and follows it in the footnote hierarchy. Everyday text users often confuse the dagger with the Latin cross (✝). However, the typographical dagger typically features a tapered, pointed base and serves as a reference mark rather than a religious icon.