訓 おも(う) ・ 音 シ
Sino-Vietnamese: tư
The top part originally drew the skull (now written like 田) and below it sits 心 (heart): head and heart working together is thinking.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
明日雨が降ると思います。 (あしたあめがふるとおもいます)
I think it will rain tomorrow.