1A boy — a young male who has not yet reached adulthood, roughly spanning childhood through early adolescence.
公園で少年たちが野球をして遊んでいた。
Some boys were playing baseball in the park.
あの少年はまだ十二歳だが、とてもしっかりしている。
That boy is only twelve, but he's very mature for his age.
少年時代に読んだ本が、今の仕事につながっている。
A book he read as a boy ended up shaping his current career.
その少年は将来、宇宙飛行士になりたいと言っている。
The boy says he wants to become an astronaut someday.
2A legal term for a minor, most often used in contexts like juvenile law that deal with young offenders.
少年法の改正をめぐって国会で議論が交わされた。
The Diet debated proposed revisions to the Juvenile Law.
家庭裁判所はその少年を保護観察処分とした。
The family court placed the juvenile on probation.