題
ダイ
topic, subject
JLPT4 G3 S18 F96
As per
是
# (straight) + 頁 head → forehead that thrusts straight out (compare 額) → end; edge → *subject*; *title*; *topic*; *theme* (← subject that presents itself ← forehead that protrudes).
[Full Kanji Etymology List]