r
After Q alphabetically
R is the eighteenth letter of the English alphabet.
In grading systems, R sometimes marks a failing grade or indicates work that needs revision.
R designates the restricted film rating—viewers under 17 require an accompanying adult.
In statistics, r represents the correlation coefficient.
The three Rs—reading, writing, and arithmetic—are the fundamentals of education, despite only one actually starting with R.
Formally recorded or enrolled
- trademarkRegistered commercial identifier
- symbolRepresentational mark or sign
- copyrightExclusive reproduction rights
- brandCompany's product line name
logo · legal · ownership · patent · notation · mark · protection · licensing
Language's letter system
- consonantIn agreement with
- phonemeMinimal distinctive sound unit
- graphemeMinimal written symbol unit
- syllableUnit of pronunciation
typeface · handwriting · calligraphy · cursive · script · capital · lowercase · glyph
Industry content evaluator
- PG-13Film rating for adolescents
- NC-17Strictest film rating
- GSeventh English letter
- PGFilm rating, some caution
X-rated · adult · restricted · content · viewer · discretion · advisory · censorship
Relating to data analysis
- programmingWriting software instructions
- vectorQuantity with direction
- packageWrapped item for delivery
- HadleyTropical atmospheric cell
Wickham · regression · plotting · console · script
registered
Formally recorded or enrolled
- trademarkRegistered commercial identifier
- symbolRepresentational mark or sign
- copyrightExclusive reproduction rights
brand · logo · legal · ownership · patent · notation · mark · protection · licensing
alphabet
Language's letter system
syllable · typeface · handwriting · calligraphy · cursive · script · capital · lowercase · glyph · orthography
MPAA
Industry content evaluator
PG · X-rated · adult · restricted · content · viewer · discretion · advisory · censorship · classification
statistical
Relating to data analysis
- programmingWriting software instructions
- vectorQuantity with direction
- packageWrapped item for delivery
matey
Informal British address
- buccaneerCaribbean colonial-era pirate
- swashbucklerDaring, flamboyant swordsman
- parrotSpeech-mimicking tropical bird
peg-leg · eyepatch · treasure · plank · scallywag · hook · Blackbeard · yo-ho-ho · skull · crossbones