IPA: /ˈbɔːr.hoʊl/
KK: /ˈbɔrˌhoʊl/
A hole that is made by drilling into the ground, often to find water or for exploration purposes.
The geologists drilled a borehole to collect samples from deep underground.
Borehole → The word is formed from "bore" (from Old English "borian", meaning to pierce or drill) and "hole" (from Old English "hol", meaning a hollow place). A borehole refers to a hole that is drilled or pierced into the ground.
Think of 'boring' into the ground to create a 'hole' — that's how you remember that a borehole is a drilled hole.