Investigate
Part of speech: verb
Definition: To inquire into or study in order to ascertain facts or information. To examine, look into, or scrutinize in order to discover something hidden or secret. To conduct an inquiry or examination.
Example sentence: In much of society, research means to investigate something you do not know or understand.
Inquire
Part of speech: verb
Definition: To ask (about something).To make an inquiry or an investigation.
Example sentence: In my view, the government has ample justification to inquire about citizenship status on the census and could plainly provide rationales for doing so that would satisfy the Supreme Court.