This is the 3230th most frequent Russian word.
обвинили
"Accused" or "blamed."
The verb 'обвинили' here is used to indicate that someone was accused of doing something specific, namely theft.
Они обвинили его в краже.
They accused him of theft.
The verb 'обвинил' is used formally to show that an accusation was made officially, such as by a legal institution.
Суд обвинил подозреваемого в нарушении закона.
The court accused the suspect of breaking the law.
The verb 'обвинила' is employed to express that someone directly blamed another person for a certain action or behavior, in this case hiding the truth.