掌握

zhǎngwò
  1. to grasp (often fig.)
  2. to control
  3. to seize (initiative, opportunity, destiny)
  4. to master
  5. to know well
  6. to understand sth well and know how to use it
  7. fluency

CEDICT

Entry Composition

1 掌 zhǎng
  1. palm of the hand
  2. sole of the foot
  3. paw
  4. horseshoe
  5. to slap
  6. to hold in one's hand
  7. to wield
2 握 wò
  1. to hold; to grasp
  2. to clench (one's fist)
  3. (bound form) to have in one's control
  4. classifier: a handful