verb
- Become steeper.
- usage: "The mountain side has steepened"
- Make steeper.
- usage: "The landslides have steepened the mountain sides"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). steepen. Retrieved September 20, 2026, from http://smartdefine.org/steepen/definitions/1330232 |
| Chicago | WordNet. 2010. "steepen" http://smartdefine.org/steepen/definitions/1330232 (accessed September 20, 2026). |
| Harvard | WordNet 2010, steepen, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/steepen/definitions/1330232>. |
| MLA | WordNet. "steepen" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/steepen/definitions/1330232> |