red line(n = noun.location) - a line that is colored red and that bisects an ice hockey rink;
is a kind of line

aclinic line, acoustic delay line, actor's line, adonic line, agate line, agonic line, air line, alizarin red, alizarine red, american red elder, american red plum, american red squirrel, assembly line, bank line, bar line, battle line, bee line, blood line, bottom line, boundary line, branch line, bread line, brick red, bus line, business line, canadian red pine, capital of red china, center line, chalk line, checkout line, cherry red, chorus line, chow line, chrome red, city line, color line, colour line, command line, command line interface, conga line, congo red, contour line, county line, credit line, danger line, dark red, date line, deep red, delay line, demarcation line, digital subscriber line, direct line, district line, dividing line, dotted line, draw a line, draw the line, drive line, drive line system, drop a line, drop line, eastern red cedar, electrical line of force, electromagnetic delay line, equinoctial line, equity credit line, european red elder, fall in line, family line, fault line, feeder line, fence line, field line, finish line, finishing line, firing line, fishing line, flight line, forest red gum, foul line, front line, frown line, fuel line, gag line, gas line, geodesic line, get a line, giant red paintbrush, goal line, green line, gunter's line, hand line, hanoverian line, hard line, harpoon line, heart line, hold the line, hook line and sinker, hot line, in line, in line with, in the red, indian red, international date line, isoclinic line, isogonal line, isogonic line, isometric line, japanese red army, japanese red pine, keep in line, lancastrian line, land line, lateral line, lateral line organ, laugh line, lay on the line, lead line, ledger line, leger line, life line, line, line backer, line block, line coach, line double, line drawing, line drive, line duty, line engraving, line feed, line function, line item, line judge, line management, line of battle, line of business, line of control, line of credit, line of defence, line of defense, line of descent, line of destiny, line of duty, line of fate, line of fire, line of flight, line of force, line of gab, line of heart, line of inquiry, line of latitude, line of least resistance, line of life, line of longitude, line of march, line of merchandise, line of poetry, line of products, line of questioning, line of reasoning, line of saturn, line of scrimmage, line of sight, line of succession, line of thought, line of verse, line of vision, line of work, line officer, line one's pockets, line organisation, line organization, line personnel, line printer, line roulette, line score, line single, line spectrum, line squall, line storm, line triple, line up, line worker, little red riding hood, load line, log line, love line, lubber line, lubber's line, maginot line, magnetic line of force, main line, mason and dixon line, mason and dixon's line, mason-dixon line, melodic line, mensal line, mooring line, new line, northern red oak, old line, old line state, opening line, orange red, out of line, oxblood red, paint the town red, party line, personal credit line, personal line of credit, phone line, picket line, pipe line, plantagenet line, plimsoll line, plot line, plumb line, pompeian red, poverty line, power line, private line, product line, production line, program line, property line, punch line, purplish red, put on the line, rail line, railroad line, railway line, reception line, red, red admiral, red alder, red alert, red algae, red amaranth, red angel's trumpet, red army faction, red ash, red baiting, red baneberry, red bat, red bay, red bearberry, red beech, red birch, red bird's eye, red blood cell, red blooded, red bone marrow, red bordeaux, red brass, red brigades, red bryony, red buckeye, red cabbage, red campion, red carpet, red cedar, red cent, red china, red clay, red clintonia, red cloud, red clover, red cole, red complexioned, red coral, red cross, red currant, red cypress pine, red dagga, red deer, red delicious, red devil, red dog, red dogwood, red drum, red dwarf, red dwarf star, red eft, red elm, red faced, red false mallow, red fire, red flag, red fox, red giant, red giant star, red ginger, red goatfish, red goosefoot, red gram, red grouse, red guard, red gum, red hand defenders, red handed, red haw, red heat, red helleborine, red herring, red hot, red indian, red ink, red jungle fowl, red juniper, red kauri, red lauan, red lauan tree, red laver, red lead, red light, red light district, red maids, red man, red maple, red marrow, red meat, red morning-glory, red mulberry, red mullet, red notice, red oak, red onion, red osier, red osier dogwood, red panda, red pepper, red periwinkle, red phalarope, red pimpernel, red pine, red planet, red poll, red porgy, red raspberry, red rat snake, red region, red river, red rockfish, red salmon, red sandalwood, red sanders, red sanderswood, red saunders, red scare, red sea, red setter, red shift, red shrubby penstemon, red silk cotton, red silk-cotton tree, red silver fir, red siskin, red snapper, red sorrel, red spider, red spider mite, red sprites, red spruce, red squirrel, red sun, red tai, red tape, red tide, red trillium, red underwing, red valerian, red water, red willow, red wine, red wolf, red worm, regression line, rhode island red, rhumb line, river red gum, rivet line, royal line, sash line, scrimmage line, see red, seeing red, service line, sewer line, ship of the line, shoot a line, short line, shumard red oak, side line, siegfried line, snap line, snow line, sonic delay line, sounding line, southern red cedar, southern red oak, spectrum line, squall line, staff line, starting line, state line, static line, stay in line, steam line, steamship line, stepped line, straight line, stream line, streetcar line, string line, subscriber line, supply line, swamp red oak, tag line, telegraph line, telephone line, ticket line, timber line, toe the line, toll line, top of the line, towing line, transit line, transmission line, trap line, trawl line, tree line, trend line, trip line, trolley line, trunk line, turkey red, turn red, unemployment line, venetian red, verse line, vortex line, waiting line, water line, wats line, western red cedar, white line, wild red oat, yard line