Meaning of RESEARCH in English

[] n [MF recerche, fr. recerchier to investigate thoroughly, fr. OF, fr. re- + cerchier to search--more at search] (1577) 1: careful or diligent search

2: studious inquiry or examination; esp: investigation or experimentation aimed at the discovery and interpretation of facts, revision of accepted theories or laws in the light of new facts, or practical application of such new or revised theories or laws

3: the collecting of information about a particular subject

[2]research vt (1593) 1: to search or investigate exhaustively "~ a problem"

2: to do research for "~ a book" ~ vi: to engage in research -- adj -- n

Merriam-Webster English vocab.      Английский словарь Merriam Webster.