adjoining land; contiguous land
Refers to land that is physically connected without a gap, such as adjacent plots or territories sharing a border.
Our garden is contiguous with the neighboring park.
この二つの町は地続きで、境目がわかりにくい。
These two towns are adjoining, so the boundary is hard to see.
Compound of 地 (chi, 'land') and 続き (tsuzuki, 'continuation'). The reading じつづき reflects rendaku voicing of ち to じ.