一块

1. • a piece a chunk
2. • (coll.) (typically preceded by a specifier such as 这 zhè) aspect area dimension (Example: 情感这一块 qínggǎnzhèyīkuài "the emotional aspect (of it)")

     fig.

3. • one yuan a dollar

     coll.

4. • together in the same place in company

Character by character

• 一(yī)one
• 块(kuài)lump