1. discovery, breakthrough, find, insight, brainstorm, brainwave

usage: a productive insight

2. breakthrough, discovery, find, uncovering

usage: making an important discovery

3. breakthrough, penetration, incursion

usage: a penetration of a barrier such as an enemy's defense


1. break through, crack, pass, go through, go across

usage: pass through (a barrier); "Registrations cracked through the 30,000 mark in the county"

2. break through, come through, appear

usage: penetrate; "The sun broke through the clouds"; "The rescue team broke through the wall in the mine shaft"

3. erupt, come out, break through, push through, appear

usage: break out; "The tooth erupted and had to be extracted"

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