- discovery, breakthrough, find - a productive insight
--1 is a kind of insight, brainstorm, brainwave
- breakthrough - making an important discovery
--2 is a kind of discovery, find, uncovering
- breakthrough - a penetration of a barrier such as an enemy's defense
--3 is a kind of penetration, incursion
Derived form: verb break through2 - breakthrough - a penetration of a barrier such as an enemy's defense