訓 み(っつ) ・ 音 サン
Sino-Vietnamese: tam
Three horizontal strokes stacked one above another, with the middle one shortest. This is the last of the numbers you can read straight off the stroke count.
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
三時に駅で会いましょう。 (さんじにえきであいましょう)
Let's meet at the station at three o'clock.