Meaning and Usage
The verb 反る (そる) primarily means "to warp," "to bend backward," or "to curve." It is often used to describe physical objects like wood, paper, or even the human body when they bend or arch backward.
Common Contexts
- Physical warping of objects: For example, wooden boards or paper can 反る due to moisture or heat.
- Body posture: When someone arches their back or leans backward, 反る describes this action.
Collocations and Patterns
- 反る + しまう: Indicates the object has warped or bent unintentionally or completely (e.g., 木の板が反ってしまった).
- 背筋を反らす: To arch or straighten one’s back, often to improve posture.
- 紙が反っている: Paper is warped or curled, often causing problems in printers.
Register and Nuance
反る is a neutral verb used in both casual and formal contexts when describing physical bending or warping. It is not used metaphorically for abstract bending or twisting.
Common Mistakes
Learners sometimes confuse 反る with 反らす (そらす), the transitive form meaning "to bend something backward." Remember, 反る is intransitive (something bends by itself), while 反らす is transitive (someone bends something). For example:
- 背中が反る (the back arches by itself)
- 背中を反らす (someone arches their back)
Understanding this distinction helps avoid grammatical errors.