Definitions

1. verb

past tense of ‘undersee’, to supervise or oversee something, especially a project or business

“The project manager undersaw the construction process to ensure everything was on schedule.”

2. verb

to see or perceive something from below

“The trees undersaw the road, forming a canopy above the car.”

3. noun

the act of seeing or perceiving something from below

“The undersaw of the mountain revealed a hidden waterfall.”