東南|とうなんtounan[0]heiban (flat)

1. nounsouth-east

• Synonym南東なんとうNeutralNeutral noun for the southeast direction, synonymous with the headword; in modern Japanese it is the more common choice in geography and meteorology.
• Related辰巳たつみWrittenA written term for the southeast from the traditional twelve-direction zodiac system; it carries an old-fashioned, archaic flavor and is rarely used.
• Antonym西北せいほくNeutralNeutral noun for the opposite direction, north-west; contrasts directly with the headword.

Use 「東南」 for the southeast, as in 「東南アジア」; 「南東」 is the usual term in geography and weather contexts, while 「辰巳」 gives a traditional, archaic flavor. The opposite direction is 「西北」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 南東なんとう。南みなみと東ひがしの中間ちゅうかんの方位ほうい。
2. 南東なんとうに位置いちする地方ちほう。