因果 (yīn guǒ) literally combines 因 (yīn), meaning 'cause' or 'reason', and 果 (guǒ), meaning 'result' or 'effect'. Together, they form a philosophical and everyday noun expressing the fundamental relationship between actions and their consequences — what happens because of something else. This concept is deeply rooted in Chinese thought, especially in Buddhism and Daoism, where it often carries moral weight: good causes lead to good effects, harmful causes to suffering.

In modern usage, 因果 appears in both formal and conversational contexts — from scientific explanations ('There’s a clear cause-and-effect relationship') to personal reflection ('I finally understood the cause and effect behind my anxiety'). It functions as an uncountable noun and rarely takes measure words. While it can stand alone, it’s frequently modified by adjectives like 'direct' (直接的因果) or 'complex' (复杂的因果) to clarify the nature of the relationship.