citron; an evergreen shrub or small tree in the citrus family with fragrant, oblong yellow fruit; also refers to the fruit itself

a fragrant evergreen tree or its fruit, typically used for medicine or decoration; also known as [[枸橼|枸櫞|ju3 yuan2]]

citric acid; an organic compound that appears as colorless crystals, also known as [[柠檬酸|檸檬酸|ning2 meng2 suan1]]