J is the tenth letter in the modern English alphabet and the ISO basic Latin alphabet. Its normal name in English is jay or jy . When used for the palatal approximant, it may be called yod ( or ) or yot ( or ).

J or j (J circumflex) is a letter in Esperanto orthography representing the sound .

(minuscule: ) is a letter of the Latin alphabet, derived from J with the addition of a hácek. It is used in some phonetic transcription schemes –e.g. ISO 9 –to represent the sound . It is also used in Wakhi in the Latin script, and sometimes in the romanization of Pashto.

j., also known as Jweekly, is a weekly print newspaper in Northern California. It is owned and operated by San Francisco Jewish Community Publications Inc. It is based in San Francisco, California. who also own and operate the companion website jweekly.com.

Jeffree Star (born Jeffrey Lynn Steininger on November 15, 1985) is an American singer-songwriter, make-up artist, fashion designer and model from Orange County, California. He started his music career on MySpace with over 25 million plays on his self-released music. After releasing two extended plays, Star released his debut album, Beauty Killer (2009), under Popsicle Records. In 2014, he launched his own cosmetics brand called Jeffree Star Cosmetics. Star is also known for his fashion line, Beauty Forever, and transgressive, gender-bending appearance and persona.

Jeopardy! is an American television game show created by Merv Griffin. The show features a quiz competition in which contestants are presented with general knowledge clues in the form of answers, and must phrase their responses in the form of questions. The original daytime version debuted on NBC on March 30, 1964, and aired until January 3, 1975. A weekly nighttime syndicated edition aired from September 1974 to September 1975, and a revival, The All-New Jeopardy!, ran on NBC from October 1978 to March 1979. A daily syndicated version premiered on September 10, 1984, and is still airing, making it by far the program's most successful incarnation.

The nasal palatal approximant is a type of consonantal sound used in some oral languages. The symbol in the International Phonetic Alphabet  that represents this sound is , that is, a j with a tilde. The equivalent X-SAMPA symbol is j~, and in the Americanist phonetic notation it is .

In computing, a newline, also known as a line ending, end of line (EOL), or line break, is a special character or sequence of characters signifying the end of a line of text and the start of a new line. The actual codes representing a newline vary across operating systems, which can be a problem when exchanging text files between systems with different newline representations.

Visual J++ (pronounced "Jay Plus Plus") is Microsoft's discontinued implementation of Java. Syntax, keywords, and grammatical conventions were the same as Java's. Microsoft discontinued support of J++ in January 2004, replacing it to a certain extent with J# and C#.