- texture
 - grain (of wood)
 - inner essence
 - intrinsic order
 - reason
 - logic
 - truth
 - science
 - natural science (esp. physics)
 - to manage
 - to pay attention to
 - to run (affairs)
 - to handle
 - to put in order
 - to tidy up
 
Resources
- Wiktionary: 理
 - MDBG: 理
 - Examples with 理 on Tatoeba