一块

一塊
yīkuài
  1. a piece; a chunk
  2. (fig.) (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)")
  3. (coll.) one yuan; a dollar
  4. together; in the same place; in company

CEDICT

colloquial

Entry Composition

1 一 yī
  1. one
  2. single
  3. a (article)
  4. as soon as
  5. entire; whole; all; throughout
  6. "one" radical in Chinese characters (Kangxi radical 1)
  7. also pr. yāo for greater clarity when spelling out numbers digit by digit
2 块 kuài
  1. lump; chunk; piece
  2. classifier for pieces of cloth, cake, soap etc
  3. (coll.) classifier for money and currency units