A high-pitched woodwind instrument; a slender tube closed at one end with finger holes on one end and an opening near the closed end across which the breath is blown WordNet 3.0 & Open English WordNet

The flute is a member of a family of musical instruments in the woodwind group. Wikipedia

A transverse flute or side-blown flute is a flute which is held horizontally when played. Wikipedia

Musical instrument. Wikipedia Disambiguation

A flute that is held horizontally Wikipedia Disambiguation

Flute which is held horizontally when played Wikidata

Musical instrument of the woodwind family Wikidata

A musical instrument of the woodwind family. OmegaWiki

A transverse (or side-blown) woodwind instrument. OmegaWiki

A woodwind instrument consisting of a tube with a row of holes that produce sound through vibrations caused by air blown across the edge of the holes, often tuned by plugging one or more holes with a finger; the Western concert flute, a transverse side-blown flute of European origin. Wiktionary

Woodwind instrument. Wiktionary (translation)

Any type of flute that is held sideways when played. Wiktionary