1. (noun) a productive insight

• discovery
• find

1. (noun) a productive insight

• brainstorm
• brainwave
• insight

2. (noun) making an important discovery

• discovery
• find
• uncovering

3. (noun) a penetration of a barrier such as an enemy's defense

• incursion
• penetration

1. (noun) a productive insight

• ascertain
• determine
• find
• find out
• detect
• discover
• find
• notice
• observe
• discover
• find out
• get a line
• get wind
• get word
• hear
• learn
• pick up
• see
• discover
• find
• discover
• discover
• find
• find
• discover

2. (noun) a penetration of a barrier such as an enemy's defense

• break through
• come through