trough, channels, gutters, ditches, conduits, furrows, grooves, trenches, canals, hollows, depressions, valleys, ravines, gullies, chasms, clefts, fissures, ruts, pits, basins, sinks, cavities, crater... [more]
trough, channels, gutters, ditches, conduits, furrows, grooves, trenches, canals, hollows, depressions, valleys, ravines, gullies, chasms, clefts, fissures, ruts, pits, basins, sinks, cavities, crater... [more]
reduces, decreases, diminishes, lessens, drops, cuts, declines, minimizes, abates, curtails, weakens, attenuates, mitigates, moderates, shrinks, slashes, trims, scales down, brings down, deflates, dep... [more]