noun which may take the genitive case particle 'no'
abreast; side-by-side; in a row
Describes people or things lined up horizontally, often used adverbially as 横一線に.
選手たちが横一線に並んでスタートを待った。
The athletes lined up abreast and waited for the start.
noun which may take the genitive case particle 'no'
neck and neck; almost equal
Used in competitive contexts where participants are very close in performance or ranking.
両チームは横一線の戦いを繰り広げている。
The two teams are fighting neck and neck.