completely free; without worries
完全に自由; 心配なし (kanzen ni jiyu; shinpai nashi)
"After the exams, I felt as free as a bird."
"試験の後、私は完全に自由だと感じた。" (shiken no ato, watashi wa kanzen ni jiyu da to kanjita.)
completely secured or protected
getting old
to plan carefully before taking action
to frighten someone very badly
to be nervous, tense, or easily upset
the most vulnerable part of a system or group