一大半

yīdàbàn

more than half; the greater part

Wiktionary

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 大半 dàbàn
  1. more than half
  2. greater part
  3. most
  4. probably
  5. most likely