|Noah Webster's Dictionary|
1. (n.) The quality, condition, or state, of being straight; as, the straightness of a path.
2. (n.) A variant of Straightness.
Straightness (1 Occurrence)
Luke 3:5 every valley shall be filled, and every mountain and hill shall be made low, and the crooked shall become straightness, and the rough become smooth ways; (YLT)