Meaning of “inquiry” - Learner’s Dictionary

inquiry

noun ( also UK enquiry) uk us /ɪnˈkwaɪəri/
QUESTION [ C ] formal

B1 a question that you ask when you want more information:

The company has received a lot of inquiries about its new Internet service.
OFFICIAL PROCESS [ C ]

an official process to discover the facts about something bad that has happened:

There will be an official inquiry into the train crash.
ASKING QUESTIONS [ U ] formal

(Definition of “inquiry” from the Cambridge Learner’s Dictionary © Cambridge University Press)