Refers to a sharp edge or corner, often in geometric or physical contexts. Can also be used metaphorically for a sharp or distinct boundary.
This crystal has clear edges.
Commonly used for mountain ridges or crests. Also appears as a suffix in geographical terms.
I bumped into the edge of the desk and it hurt.
The trail continues along the ridge line.
Walking along the ridges of the Northern Alps feels great.
Goryokaku; star-shaped fort
mountain ridge
rock ridge; cliff ridge
bastion
The kanji 稜 originally means 'corner' or 'edge' and is used in words related to sharp boundaries or ridges. The reading りょう is the on'yomi.