en breakthrough (n, act)
― IsA ⟶
Weight: 2.0
en discovery (n, act) Source: Open Multilingual WordNet
en breakthrough (n, act)
― IsA ⟶
Weight: 2.0
en penetration (n, act) Source: Open Multilingual WordNet
en breakthrough (n)
― IsA ⟶
Weight: 1.0
en event (n) Source: OpenCyc 2012