ridgeline; lines of a mountain ridge
edge; angle; ridge (e.g. of a mountain)
corner; sharp corner; dihedral angle
(a person with) strong moral fiber (backbone, determination)
ridge of a cliff; rock ridge
(a person with) strong moral fiber (backbone, determination)
branched bur-reed (Sparganium erectum); simplestem bur-reed
ridge of a cliff; rock ridge
five-sided fort; Pentagon