The answer is vanquish/destroy. These are part of analogies, so you would have to know them to be able to answer this question. Conquer means to be "over" something, or stronger.
Overcome, takeover, capture
Another word for gather or collect is... handle or group together.
gather
collect
hey bros the answear is gather
gather
collect
Atsumaru is 'to gather' in the crowd sense; (To gather around someone) Atsumeru is 'to gather' as in to collect.
Gather, hoard, and save.
Collect.
Interrogate.
Synonyms for gather include collect, amass, acquire, obtain.