What is the meaning of Katakana?

A Japanese syllabary used when writing words borrowed from foreign languages other than Chinese, specific names of plants and animals and other jargon, onomatopoeia, or to emphasize a word or phrase. Also used to write the Ainu language.

A character thereof.

katakana

katakana (syllabary)

katakana (letter of the syllabary)

katakana (syllabary)

katakana (letter of the syllabary)

Rōmaji transcription of かたかな

Rōmaji transcription of カタカナ

katakana (Japanese syllabary used when writing words borrowed from foreign languages other than Chinese, specific names of plants and animals and other jargon, onomatopoeia, or to emphasize a word or phrase; also used to write the Ainu language)

katakana (Japanese syllabary)

katakana

Source: wiktionary.org