association; fellowship; intercourse
Used mainly in compounds or fixed expressions to indicate mutual relationship or social interaction. Not a standalone word in modern Japanese.
The 交 in 交わり or 交際 expresses a connection between people.
change of season or year
Appears in classical or literary expressions like 春秋の交 (the turn of spring and autumn). Not used independently in modern speech.
The phrase 春秋の交 can refer to the change of seasons.
交際 is a common standalone word for social interaction or dating, while 交 is the root kanji used only as a building block in such compounds, not on its own.
exchange; swap; replacement
traffic; transportation · communication; exchange (of ideas, etc.) · intercourse
negotiations; bargaining; talks · connection; relationship; dealings
exchange; interchange; interaction · alternating current; AC
diplomacy; foreign affairs · door-to-door selling; canvassing
The kanji 交 originally depicts crossed legs, implying exchange or intersection. The reading こう is the on'yomi, used in Sino-Japanese compounds.
social life; socializing; social intercourse
sexual intercourse; sex; coitus
alternating; in turn; reciprocal
diplomatic relations
reverberation; resonance
crossing; intersection · crossing over (genetics)
hostilities; battle; war
copulation; mating
police box; small neighborhood police station; koban · alternation; taking turns · alternating; alternating current or stress
mating; crossbreeding; cross-fertilization
telecommunications; correspondence; communication
trade; commerce
friend; companion; acquaintance · friendship; companionship; social relations
intimacy; friendship; close relations
intertwine; interlace; cross; mix together
breaking off a relationship; permanent breach of friendship; rupture
hybridization; crossing · mixing; intermingling
breaking off relations; severing diplomatic ties
barter; bartering
friendship; companionship; social intercourse
intersection point; point of intersection
exchange of courtesies; fraternization; friendly gathering