‘垫高’ is a verb meaning ‘to raise something by placing an object underneath it’. The first character 垫 (diàn) means ‘to pad’, ‘to cushion’, or ‘to support from below’, while 高 (gāo) means ‘high’ or ‘tall’. Together, they form a compound verb indicating the action of increasing height via an underlying support — not by lifting directly, but by adding material beneath. It emphasizes the method (inserting something underneath) rather than just the result.

This word is commonly used in practical, physical contexts: adjusting furniture height, modifying equipment for ergonomics, supporting objects during construction or repair, or even figuratively in expressions like ‘垫高身价’ (to inflate one’s status). It often appears with objects like books, blocks, wood, or platforms as the ‘pad’, and the thing being raised is typically concrete and tangible — e.g., a table, a camera, or a patient’s head.