n. 25B6; noun REASON(S), reasoning, thinking, logic, grounds, sense; principle, theory, argument, case; motive, motivation, explanation, justification, excuse; the whys and wherefores.
RATIONALE
Meaning of RATIONALE in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012