a younger sibling

sound / timbre / Short for 音楽 (ongaku): music / speech (phonetics) / Short for 字音 (jion): Chinese-derived reading of a kanji / news, tidings

a boy

misandry / androphobe

反核: anti-nuclear / 半角: half-width (characters), usually romaji or katakana

計画: plan, planning, schedule, conception

計画: to plan, to make a plan, to plot, to lay out

介助犬: mobility dog, mobility assistance dog / 解除権: right of cancellation

体格: body shape / 対角: (mathematics) opposite angle / 対格: (grammar) accusative case

全角: em, em quad (printing), full-pitch character (e.g. Ｕｎｉｃｏｄｅ, not ASCII)