horizontality

horizontality; flatness; level, plane; stratum; dead level, dead flat; level plane., recumbency, lying down; reclination, decumbence; decumbency, discumbency; proneness; accubation, supination, resupination, prostration; azimuth., plain, floor, platform, bowling green; cricket ground; croquet ground, croquet lawn; billiard table; terrace, estrade, esplanade, parterre, table land, plateau, ledge.

be horizontal; lie, recline, couch; lie down, lie flat, lie prostrate; sprawl, loll, sit down., render horizontal; lay down, lay out; level, flatten; prostrate, knock down, floor, fell.

horizontal, level, even, plane; flat; flat as a billiard tabble, flat as a bowling green; alluvial; calm, calm as a mill pond; smooth, smooth as glass., recumbent, decumbent, procumbent, accumbent; lying; prone, supine, couchant, jacent, prostrate, recubant.

horizontally; on one's back, on all fours, on its beam ends.