to examine; to look up; to investigate; to check up; to sense; to study; to inquire; to search
to re-examine; to review; to recheck
to hunt up; to locate; to inquire out
インターネットで調べた。
I looked it up on the internet.
原因を調べる必要がある。
We need to investigate the cause.
辞書で言葉を調べました。
I looked up words in the dictionary.