an earthwork / castle / position of defense / stronghold / used in place names, often as phonetic bao for "burg" or "bad"
堡
=
保
+
土
:
Beelzebub (b) created a new olace for his valuables. Inside of the aorta (ao3) he built a sand castle (堡). In the center of the castle (堡) there is a heap of clay (土) on which a safe (保) is resting.
earth / dust / clay / local / indigenous / crude opium / unsophisticated / one of the eight categories of ancient musical instruments 八音[ba1 yin1]
土
=
十
+
一
:
Tommy Turtle (tu) wants to fix a cross (十) on a flute (一) in the space station's living room (Ø3). He uses dust and clay (土) to hold them together.
Gutenberg (name) / Johannes Gutenberg (c. 1400-1468), inventor in Europe of the printing press / Beno Gutenberg (1889-1960), German-born US seismologist, coinventor of the Richter magnitude scale