済

Kanji: 済
Level: N2
Meaning: settle, finish, relieve
On'yomi: サイ, セイ
Kun'yomi: す.む, す.ます
Strokes: 11
Common compounds: 経済 (けいざい) economy 返済 (へんさい) repayment
Memory hook: Water (氵) brings relief when problems are neat and settled (斉).