The term 高手 is deeply embedded in Chinese culture, most famously through 武侠 (wǔxiá) - the genre of martial arts heroes and chivalry. In wuxia novels and films, a 高手 is a formidable martial artist whose skills are the stuff of legend. They are respected, feared, and often sought out for guidance or for a duel. This archetype has shaped the term's modern connotation, lending it an air of reverence and genuine, hard-won mastery. While the English word “expert” can sometimes feel academic or clinical, 高手 is more about awe-inspiring practical ability. A Westerner might say, “She's a professional software developer,” focusing on her job title. A Chinese speaker might praise the same person by saying, “她是编程的高手” (Tā shì biānchéng de gāoshǒu), meaning “She's a master of programming.” The focus shifts from her professional status to her incredible skill. 高手 celebrates not just what you know, but what you can do, and how incredibly well you can do it. This reflects a cultural value of respecting tangible skill and the dedication required to achieve it.
高手 is an extremely common term in everyday language, used in both informal and semi-formal situations. It's almost always a compliment.