godan verb (-ru), intransitive verb
bend upward; warp upward; curl up
Describes something that curves or bends upward, often at the tip or edge. Used for physical objects like boards, edges, or body parts.
この板は湿気で反り上がっている。
This board has warped upward from moisture.
彼のまつげは自然に反り上
His eyelashes naturally curl upward.