researching

/R IY0 S ER1 CH IH0 NG/
verb
  1. 1

    To search or examine with continued care; to seek diligently.

  2. 2

    To make an extensive investigation into.

  3. 3

    To search again.

noun
  1. 1

    The act of carrying out research.

Source: https://en.wiktionary.org/wiki/research, https://en.wiktionary.org/wiki/researching