/r/ or r/ may refer to: /r/, an imageboard for Adult Requests on 4chan r/, short for , the prefix for the name of a subreddit, a community on Reddit /r/, the IPA notation for a pronunciation consisting solely of a voiced dental, alveolar or postalveolar trill or, more broadly, some rhotic consonant "R/", the prefix for provisional designations of planetary rings — see
Generic meanings Interpretations like these apply to any sequence of letters and/or digits prefixed and suffixed by a slash (punctuation): , a regular expression using -style delimiters that matches the string "r" , a Unix-style path (computing) that points to the top-level directory named "r"
See also Slasher (disambiguation)
/r9k/, a 4chan board that implements the "ROBOT9000" algorithm that prevents exact reposts /rif, short for "Rhythm in Freedom", an Indonesian alt-rock band /ritzau/, the logo of Ritzaus Bureau A/S, a Danish news agency /root and /run, directories in the Filesystem Hierarchy Standard used by most Unix-like systems, such as Linux distributions
R/390, an IBM RS/6000 server expansion card Ultraman R/B, a Japanese television series R/GA Media Group, Inc. R/I, short for "Reader/Interpreter", an OS/360 feature r/K selection theory, an evolutionary hypothesis R/P or RPR, the reserves-to-production ratio of a non-renewable resource R/P FLIP, a semi-submersible open ocean research platform R/T, short for "Road/Track", a Dodge/Chrysler automobile performance marker R/V, short for "research vessel", a kind of ship R/W, short for "read/write" ℞, a character primarily abbreviating Latin recipe, referring to a medical prescription /r, the tone indicator for 'romantic' , the backslash escape sequence for carriage return / (disambiguation) R (disambiguation)