How do you say autumn in Chinese?
— 秋天 (qiūtiān), 秋季 (qiūjì); 秋季; 秋季

Related synonyms for autumn in Chinese
fall落 (luò), 落下 (luòxià), 掉 (diào)
Generic synonyms for autumn in Chinese
season季 (jì), 季節, 季节 (jìjié)