領域: area, territory, domain

vengeful spirit / souls (mankind, people) (third reading only)

center, middle, heart, core (physical center) / center, hub (most important area of activity) / crux, main point

絶対領域: (slang) exposed skin of the thigh between the hem of a girl's miniskirt and her thigh-high socks

to research, to study

a piece of research, a study, investigation

(chiefly women's speech) first person singular pronoun: I, me

生き物: living creatures

chicness, stylishness

Alternative form of ゆき (yuki) / イき, イキ: (slang) orgasm; coming; cumming