low water markˌlow ˈwater ˌmark noun [countable] 
Examples
ExamplesEXAMPLES FROM THE CORPUS
word sets- Below low water mark, predation by lobsters may be significant.
WORD SETS► Geography
a mark showing the lowest level reached by a river or other area of water → high water markabyss, nounalluvial, adjectivealluvium, nounalpine, adjectiveAmerican, adjectiveAntarctica, anticyclone, nounarchipelago, nounArctic, adjectivearid, adjectiveAsia, atlas, nounatoll, nounAustralasia, Australasian, adjectiveAustralia, avalanche, nounaxis, nounbank, nounbarometer, nounbarrier reef, nounbasin, nounbay, nounbayou, nounbeach, nounbearing, nounbed, nounbight, nounbluff, nounborder, nounborder, verbborderland, nounborderline, nounborough, nounbox canyon, nounBritish, adjectivebutte, nouncanyon, nouncape, nouncapital, nouncardinal point, nounCaribbean, adjectivecartography, nouncay, nounchain, nounchaparral, nounchart, nounchasm, nounchimney, nounChinese, adjectivecirrus, nounCIS, nouncliff, nounclimate, nounclimatic, adjectivecoastal, adjectivecoastline, nouncockney, nouncol, nouncold front, nouncommuter belt, nouncompass, nounconfluence, nouncontinent, nouncontinental, adjectivecontinental shelf, nouncontour, nounconurbation, nouncoordinate, nouncorridor, nouncorrie, nouncoterminous, adjectivecouncil estate, nouncountry, nouncounty, nouncounty town, nouncourse, nouncove, nouncrag, nouncraggy, adjectivecreek, nouncrevasse, nouncrevice, nouncumulus, nouncyclone, noundateline, noundelta, noundesert, noundesert island, noundevelopment, noundistrict, noundivide, noundown, adverbdune, noundust bowl, nouneast, nouneast, adjectiveeast, adverbeastbound, adjectiveeasterly, adjectiveeasterly, nouneastern, adjectiveEasterner, nouneasternmost, adjectiveeastwards, adverbelevation, nouneminence, nounenvirons, nounequatorial, adjectiveerode, verberosion, nounescarpment, nounestuary, nounEurope, nounextraterritorial, adjectiveeyot, nounface, nounfarmland, nounfeeder, nounfiord, nounfirth, nounfjord, nounflood plain, nounfluvial, adjectivefrontier, nounfrontiersman, noungale force, adjectivegap, noungeo-, prefixgeography, noungeophysics, noungeopolitics, noungeyser, nounglacial, adjectiveglaciation, nounglacier, nounglobe, noungoldfield, noungorge, noungrassland, nounGrecian, adjectivegreen belt, noungrid, noungrotto, noungroundwater, noungulch, noungulf, noungully, nounhead, nounheadland, nounheadwaters, nounheartland, nounhemisphere, nounhighland, adjectivehighlands, nounhigh water mark, nounhinterland, nounHome Counties, the, homeland, nounhurricane, noun-i, suffixIberian, adjectiveiceberg, nounice cap, nounice floe, nounice pack, nounice sheet, nouninhabitant, nouninland, adjectiveinland, adverbinlet, nouninner city, nouninshore, adverbinsular, adjectiveintercontinental, adjectiveInternational Date Line, nounisland, nounisle, nounislet, nounisobar, nounIsraeli, adjectiveIsraeli, nounisthmus, nounItalian, adjectiveItalianate, adjectiveItalo-, prefixJapanese, adjectivekey, nounknoll, nounlagoon, nounlake, nounlandlocked, adjectivelandmass, nounlandslide, nounlandslip, nounlat., Latin, adjectiveLatin America, nounLatin American, adjectivelatitude, nounlevee, nounlittoral, nounlong., longitude, nounlongitudinal, adjectivelough, nounlowlands, nounlow-lying, adjectivelow water mark, nounmagnetic north, nounmagnetic pole, nounmarsh, nounmarshland, nounmeander, verbMediterranean, adjectiveMercator projection, nounmeridian, nounmesa, nounMiddle America, nounmidtown, adjectivemonsoon, nounmoorland, nounmorass, nounmountain, nounmountainside, nounmountaintop, nounmouth, nounmudslide, nounmull, nounnarrows, nounnavigation, nounNE, neck, nounnor'-, prefixnorth, nounnorth, adjectivenorth, adverbNorth America, nounnortheast, nounnortheast, adjectivenortheasterly, adjectivenortheastern, adjectivenortheastwards, adverbnortherly, adjectivenorthern, adjectivenortherner, nounnorthernmost, adjectivenorthwards, adverbnorthwest, nounnorthwest, adjectivenorthwesterly, adjectivenorthwestern, adjectivenorthwestwards, adverbnotch, nounNW, NZ, oasis, nounoccidental, nounocean, nounonshore, adjectiveopenness, nounOrdnance Survey map, nounoriental, adjectiveoutcrop, nounoverspill, nounpack ice, nounpaddy, nounpalisade, nounpan-, prefixpanhandle, nounparallel, nounpeak, nounpeninsula, nounPersian, adjectivephysical geography, nounplain, nounplateau, nounpoint, nounpolar, adjectivepole, nounpolitical geography, nounpollutant, nounpop., populate, verbpopulation, nounprairie, nounprecipice, nounprecipitation, nounPrime Meridian, principality, nounprojection, nounpromontory, nounprovince, nounprovincial, adjectivepueblo, nounR, rainfall, nounrain forest, nounrain gauge, nounrainstorm, nounrange, nounravine, nounreef, nounreference, nounregion, nounregional, adjectiverelief map, nounreservoir, nounresettle, verbresidential, adjectiveresource, nounridge, nounrift valley, nounrise, verbriver, nounriver basin, nounriver bed, nounRoman, adjectiverotation, nounrugged, adjectiverun-off, nounrural, adjectivesand, nounsand bar, nounsandstorm, nounsandy, adjectivesavanna, nounScandinavian, nounscar, nounscarp, nounscree, nounscrubland, nounSE, seaboard, nounsea breeze, nounseafront, nounsea level, nounseaport, nounseaward, adjectivesection, nounsemitropical, adjectiveshelf, nounslough, nounsmog, nounsnowfield, nounsource, nounsouth, nounsouth, adjectivesouth, adverbSouth America, adjectivesoutheast, nounsoutheast, adjectivesoutheasterly, adjectivesoutheastern, adjectivesoutheastwards, adverbsoutherly, adjectivesouthern, adjectivesouthernmost, adjectivesouthwards, adverbsouthwest, nounsouthwest, adjectivesouthwesterly, adjectivesouthwestern, adjectivesouthwestwards, adverbspeleology, nounspit, nounspur, nounstrait, nounsubcontinent, nounsubtropical, adjectivesuburb, nounsuburban, adjectivesummit, nounsurvey, nounsurvey, verbSW, swamp, nountableland, nounterrain, nounterritory, nountidal, adjectivetidal wave, nountidewater, nountime zone, nountop, nountopography, nountor, nountornado, nountown, nountown centre, nountowpath, nountrack, nountract, nountrade route, nountrail, nountransatlantic, adjectivetranscontinental, adjectivetributary, nountropic, nountropical, adjectivetundra, nountyphoon, nounUK, the, uncharted, adjectiveup, adverbup-country, adjectiveuplands, nounupper, adjectiveupriver, adverbupstate, adjectiveupstream, adverbuptown, adverburban, adjectiveurbanized, adjectiveurban renewal, nounurban sprawl, nounUS, the, adjectivevalley, nounW, warm front, nounwaste, adjectivewasteland, nounwater, verbwatercourse, nounwaterfall, nounwaterfront, nounwaterhole, nounwatering place, nounwater meadow, nounwatershed, nounwater table, nounwaterway, nounweather vane, nounwest, nounwest, adjectiveWest, nounwestern, adjectiveWesterner, nounwesternmost, adjectivewestward, adverbwilderness, nounwolds, nounzoning, noun