(education) research project, done by Japanese schoolchildren during summer break, to be presented upon return to school

custodial sentence; any punishment involving deprivation of the criminal's freedom, especially the freedom of movement

one who acts freely, relatively unbound by societal norms

Kyūjitai form of 経度 (“longitude”) (angular distance)

twice; two times / (music) second (interval) / two degrees (angle, teperature, etc...)

twice / again

certainty

(television, electronics) fidelity, the accuracy of signal reproduction

popularity

degree of difficulty