一帯
いったい · ittai · JLPT N3 · noun
region
🗺️ 一帯 = one + belt: a single belt of land, so the whole area
帯 means belt or sash, and by extension a zone or band of land, as in 熱帯 (tropical zone). With 一 (one) in front, one unbroken zone means the whole area, as in この一帯 (this whole area).
一 — single horizontal stroke
一 is one of the simplest pictographs in Chinese, depicting a single horizontal line to represent the number one. It has retained essentially the same form since oracle bone script over 3,000 years ago. By extension it also means 'first,' 'whole,' or 'same.'