This site will be taken down March 31st, 2026.

This was not an easy decision to make. For the last couple years, I have been struggling to find motivation for this site and to keep up with basic maintenance and security updates. With the rise of AI and more sophisticated tools, the usefulness of sites like this is questionable and traffic has nose-dived. I just don't have it in me to keep doing this. Thank you all for 10 years of support!

Zach

四角形

Readings

Kana: しかくけい、しかっけい
Romaji: shikakukei, shikakkei
Kana
Romaji

Definition

1

quadrilateral; quadrangle; tetragon

See also: 四辺形

Kanji

Readings: シ、 よ、 よ.つ、 よっ.つ、 よん
Meaning: four
Readings: カク、 かど、 つの
Meanings: angle, corner, square, horn, antlers
Readings: ケイ、 ギョウ、 かた、 -がた、 かたち、 なり
Meanings: shape, form, style

Example Sentence

ペパーバーグは2つの物体(ぶったい)(たと)えば、緑色(りょくしょく)四角形(しかっけい)(あか)四角形(しかっけい))をみせて「(ちが)いは(なに)?」と()いかけることができる。
➥Pepperberg can show Alex two objects (for example, a green square and a red square) and ask, "What's different?"
Full Entry➤