開発: development

開発: develop

快速: high-speed / 快足: nimble-footed, fast on one's feet / 会則: society or club's rules or constitution

empty air / meaninglessness / (Buddhism) sunyata: emptiness, vacuity, awareness, openness, thusness / (Buddhism) void: one of the 五大 (godai, literally “great five”) and the highest of the five elements

use (noun) / a task, business, an errand

(regional, especially Kansai) a small valley

偕老: growing old together / 貝楼: / 回廊, 廻廊: corridor; cloister / 戒﨟, 戒臘: / 海老: lobster, prawn, shrimp / 海楼: / 皆労:

tool, instrument, implement, device

発情: sexual arousal

発情: to be in heat; to feel frisky