体型 (tǐ xíng) literally combines 体 (tǐ), meaning 'body' or 'physical form', and 型 (xíng), meaning 'type', 'form', or 'model'. Together, they refer to a person’s overall physical build — including proportions, muscle mass, fat distribution, and skeletal structure — often categorized in Chinese contexts as 瘦型 (shòu xíng, slim type), 健壮型 (jiàn zhuàng xíng, athletic type), or 胖型 (pàng xíng, stocky type). It’s commonly used in health, fitness, fashion, and medical discussions to describe how someone’s body naturally appears or responds to diet and exercise.

Unlike the English term 'body type', which may reference scientific classifications like ectomorph/mesomorph/endomorph, 体型 in everyday Chinese usage is more descriptive and less technical — it emphasizes observable shape and general physique rather than underlying physiology. It’s neutral in tone and frequently appears in advice columns, gym consultations, or clothing size guides, where understanding one’s 体型 helps inform lifestyle choices or style recommendations.