Answer: horizontal

AnswerCrossword Clue
HORIZONTALLevel
HORIZONTALGymnast's type of bar.
HORIZONTALFlattened: Sl.
HORIZONTALFlat
HORIZONTALFLAT
horizontalCombining companies engaged in the same stage or type of production
horizontalOf or at the horizon
horizontalInvolving social groups of equal status
horizontal(of machinery) Having its parts working in a horizontal direction
horizontalParallel to the plane of the horizon; at right angles to the vertical
horizontalparallel to the horizon / a horizontal line