| 拡大 | かくだい | magnification, enlargement, expansion |
| 拡散 | かくさん | scattering, diffusion, spread (e.g. signal across the spectrum) |
| 拡充 | かくじゅう | expansion |
| 拡張 | かくちょう | expansion, extension, enlargement, escape, ESC |
| 拡大均衡 | かくだいきんこう | an expanded or expanding equilibrium |
| 軍拡 | ぐんかく | military expansion, expansion of armaments |
| 拡声機 | かくせいき | megaphone, bullhorn, loudhailer |
| 拡がる | ひろがる | to spread (out), to extend, to stretch, to reach to, to get around, to fill (e.g. a space) |
| 拡げる | ひろげる | to spread, to extend, to expand, to enlarge, to widen, to broaden, to unfold, to open, to unroll |
| 拡がり | ひろがり | expanse, extent, spread, stretch |
