追加

zhuījiā
  1. to add something extra
  2. an additional increment
  3. addendum
  4. to append
  5. an additional posthumous title

CEDICT

Entry Composition

1 追 zhuī
  1. to chase
  2. to pursue
  3. to look into
  4. to investigate
  5. to reminisce
  6. to recall
  7. to court (one's beloved)
  8. to binge-watch (a TV drama)
  9. retroactively
  10. posthumously
2 加 jiā
  1. to add
  2. (math.) plus
  3. to increase; to augment
  4. (used before a disyllabic verb, often after an adverb like 不 bù, 大 dà, 稍 shāo etc, to indicate that the action applies to sth previously mentioned, as in 稍加改良 shāojiāgǎiliáng "make some minor improvements to (it)")