gradate

Từ điển WordNet v3.1 - WordNet Dictionary

verb

1. arrange according to grades
- These lines are gradated
• Derivationally related forms:
gradation
• Hypernyms:
arrange, set up
• Verb Frames:
- Somebody ----s something
2. pass imperceptibly from one degree, shade, or tone into another
- The paint on these walls gradates but you don't see it
• Hypernyms:
change
• Verb Frames:
- Something ----s