To Store
To Achieve, To Score
transitive verb, ichidan verb
When you obtain something you need to keep it safe, so you decide to store it somewhere. Then you can always go back and look at the thing you managed to achieve or to score, and no one can take it from you.
収める means "to store" with an emphasis on placing something in their proper location. This nuance extends to convey a sense of accomplishment, such as "achieving a favorable outcome.”
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You learned this reading with 収まる, but here's a mnemonic to remind you just in case:
You need to store all of the old saws (おさ). You were able to finish and to achieve everything you wanted with them, so it's time to put them away so they'll be safe.
争いを収めるにはどうすればいいのだろう。
What should I do to finish the fight?
コウイチは今回の選挙で圧倒的に勝利を収めた。
Koichi scored a landslide victory at this election.
ビエトの政治犯罪に関する証拠をファイルに収めました。
I stored the evidence regarding Viet's political crime in the file.