円形・丸型・丸形・円型|えんけいenkei[0]heiban (flat)
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- nounround shape; circle; circular form
- Synonym丸まるCasualColloquial word for a circle, also covering the whole or money, as in 「丸をつける」; 「円形」 is a written-style noun for the round shape itself.
- Antonym四角しかくNeutralNeutral word for a quadrilateral, especially a square; the everyday counterpart of 「円形」 in the round-versus-square contrast.
- Antonym角形かくがたWrittenWritten-style word for square or rectangular shapes; it stands opposite 「円形」 in the circle-versus-square contrast.
Use 「円形」 for the round shape itself, especially in written or compound expressions like 「円形脱毛症」「円形劇場」. In speech, a circle is 「丸」 (also the whole, or money). For the opposite shape, 「四角」 is the neutral everyday choice, 「角形」 the written one.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
- 円の形。丸い形。


