tenth of the ten Heavenly Stems 十天干[shi2 tian1 gan1], tenth in order, letter "J" or Roman "X" in list "A, B, C", or "I, II, III" etc, ancient Chinese compass point: 15°, deca
mortise (slot cut into wood to receive a tenon), 4th earthly branch: 5–7 a.m., 2nd solar month (6th March–4th April), Year of the Rabbit, ancient Chinese compass point: 90° (east), (coll.) to concentrate one's strength (variant of 鉚|铆[mao3])