演技 (yǎn jì) literally combines 演 (yǎn), meaning 'to perform' or 'to act', and 技 (jì), meaning 'skill' or 'technique'. Together, it refers specifically to an actor’s ability to portray characters convincingly—encompassing voice control, facial expression, body language, emotional authenticity, and timing. It is a core evaluation criterion in film, theater, and television.

This noun is commonly used in critiques, reviews, and discussions about performers. While often applied to professional actors, it can also describe amateur or student performances. 演技 is typically modified by adjectives like 好 (good), 差 (poor), 扎实 (solid), or 出色 (outstanding), and frequently appears with measure words like '一' (e.g., 一出好演技) or in phrases like 演技派 (an actor known for strong acting skill rather than looks). It carries no inherent positive or negative connotation—it depends entirely on context and modifiers.