Ja or JA may refer to: Arts and entertainment. Ja (novel), or Yes, by Thomas Bernhard. JA (TV series), a Danish television show. Biology. Ja (beetle), an insect genus. Jasmonic acid, a plant hormone. Language. Ja, grammatical particle meaning "yes" in most Germanic languages, Slovene language and informal English. Ja, meaning "I" in many Slavic languages. Ya (Cyrillic) (Я), a Cyrillic letter, pronounced /ja/ in some languages. Japanese language (ISO 639-1 alpha-2 code JA) Ja (Indic), a glyph in the Brahmic family of scripts. Ja (Javanese) (ꦗ), a letter in the Javanese script. Organizations.
https://en.wikipedia.org/wiki/JA