must; to need to; to be sure to
务 · 5 strokes
Simplified form of 務. Phonosemantic compound. 矛 represents the sound, while 攵 and 力 both represent the meaning. The traditional component 矛 was removed for simplification.
必 · 5 strokes
Pictograph of a weapon handle, now written as 柲. 八 was later added as a decorative mark. Similar to 戈 but without the blade. The current meaning is a phonetic loan.