際 (occasion)

1. Kanji: 際
2. Meaning: occasion, time, when, edge, verge
3. On-yomi: サイ
Kun-yomi: きわ、 -ぎわ
4. Radical: left hill 阝 + sign 示 + tent 癶
5. How to memorize: There is a party going on at the left-side hill!