--

--, a string of two hyphen-minus characters, may approximate or refer to:

• Em dash (—), as a typewriter approximation
• Sig dashes (--), the email and Usenet signature delimiter
• 'M' letter in Morse code
• For Unix-like operating system commands, used as a prefix for long options. By itself, it typically means the end of command options.
• The decrement operator in some programming languages
• Inline comments in some programming languages

See also

• ---
• Double hyphen (one above the other)
• En dash (–)
• HTML comment tag wrappers, <code><nowiki></nowiki></code>
• Horizontal rule, which is represented by <code>----</code> in MediaWiki markup