親交|しんこうshinkou[0]heiban (flat)

1. nounintimacy; friendship; friendly relations

• Synonym友好ゆうこうNeutralFriendly relations, which can hold between countries, groups or individuals, as in 「友好条約」 or 「友好的な態度」; 「親交」 stresses close mutual association.
• Synonym親密しんみつNeutralA na-adjective describing a close relationship, as in 「親密な関係」; 「親交」 is a noun for the close association itself.
• Synonym仲良しなかよしCasualColloquial: being on good terms, or the good friend itself; more casual and affectionate than 「親交」.
• Synonym親善しんぜんNeutralGoodwill between countries or groups, as in 「親善試合」; 「親交」 is about personal friendships.
• Synonym友情ゆうじょうNeutralThe affection between friends, stressing the feeling itself; 「親交」 is about the association and contact.
• Synonym懇親こんしんNeutralFriendly mingling, mostly in 「懇親会」; the aim is socializing rather than a deep bond.
• Synonym友誼ゆうぎWrittenWritten: friendship or friendly relations, mostly in international contexts.
• SynonymフレンドシップNeutralLoanword for friendship, mostly in event names; in everyday speech say 「友情」.
• Synonym親近しんきんWrittenWritten style: feeling close to someone, as in 「親近感」; rarely used alone, and can also mean a close retainer.
• Synonym親しさしたしさNeutralThe degree of closeness or warmth one feels; 「親交」 refers to the association itself.
• RelatedおなじみNeutralFamiliar or well-known, also a regular customer; stresses familiarity, not the association itself.
• Related修好しゅうこうWrittenWritten: friendly relations established between nations, as in 「修好条約」; only for countries.
• Related馴染みなじみNeutralFamiliarity, also an old acquaintance like a 「幼馴染み」; stresses being well acquainted rather than close ties.
• Related昵懇じっこんWrittenWritten and old-fashioned: very close, deep ties, as in 「昵懇の間柄」.
• RelatedよしみNeutralGoodwill or a connection, often as 「…のよしみで」 to mean 'out of regard for the relationship'.
• Related交誼こうぎWrittenWritten: the goodwill of an association, seen mainly in speeches, as in 「ご交誼を賜り」.
• Related交情こうじょうWrittenWritten and rare: affection arising from an association; can also imply a love affair.
• Related別懇べっこんWrittenWritten and rare: an especially deep friendship, found mostly in letters.
• Related昵近じっきんWrittenWritten and rare: the degree to which people know each other well and are close.
• Related爾汝の交わりじじょのまじわりWrittenA set phrase for close friends who can drop formal address and speak plainly; written and rare.
• Antonym疎遠そえんNeutralAntonym: a distant relationship with little contact or correspondence, the opposite of 「親交」.
• Antonym絶交ぜっこうNeutralAntonym: cutting off the relationship altogether, the opposite of 「親交」; a decisive, final tone.

Use 「親交」 for a deep personal association, as in 「親交を深める」. For the bond between friends say 「友情」; for friendly relations between countries or groups say 「友好」 or 「親善」. Casual talk about being close takes 「仲良し」. The remaining written terms — 「昵懇」, 「交誼」, 「修好」, 「友誼」 and the rest — are formal or old-fashioned, mostly for prose, speeches or diplomacy. The opposites are 「疎遠」 (drifting apart) and 「絶交」 (breaking off).

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

1. 親したしい交まじわり。