noun which may take the genitive case particle 'no', noun
connected as one; unbroken; linked together
Describes things that form a single continuous entity, such as a line, chain, or sequence, without breaks or interruptions.
この道は一つながりになっている。
This road is connected as one continuous stretch.
彼の話は一つながりで、途中で切れることがなかった。
His story was unbroken and never paused in the middle.
Compound of 一 (ひと, 'one') + つながり (連用形 of つながる, 'to be connected'). Literally 'one connectedness'.