たしかなものにする
Meanings
Expression
Verb (する)
1. to strengthen; to beef up; to put on a firm basis; to ensure; to secure
Kanji used
certain
Composed of
sure; certain; reliable; trustworthy; If I'm not mistaken; If I remember correctly
to get; to secure; to learn; to master; to complete
Examples (1 in total)
The news confirmed my suspicions.