天分 (tiān fèn) means a natural gift or innate talent, often used in everyday speech for specific abilities (e.g., language, art). It is less formal than 天赋 (tiān fù) and less extreme than 天才 (tiān cái), which can mean 'genius' or exceptional talent. Unlike 才能 (ability) or 才华 (artistic talent), 天分 stresses inborn aptitude.