building; structure; edifice
建 · 8 strokes
Depicts a hand setting up a wooden post (聿) at the corner of a building site (𠃊).
筑 · 12 strokes
A strong 巩 bamboo ⺮ building; ⺮ also provides the pronunciation
物 · 8 strokes
Phonosemantic compound. 牛 represents the meaning and 勿 represents the sound. Based on the original meaning "variety", depicting the variety of colors on a cow. Later the meaning shifted to "things".