international date line(n = noun.location) date line, dateline - an imaginary line on the surface of the earth following (approximately) the 180th meridian;
is a kind of line of longitude, meridian

aclinic line, acoustic delay line, actor's line, adonic line, agate line, agonic line, air line, anti-imperialist international brigade, assembly line, balance of international payments, bank line, bar line, battle line, bee line, blind date, blood line, bottom line, boundary line, branch line, bread line, bus line, business line, center line, centre for international crime prevention, chalk line, checkout line, chinese date, chorus line, chow line, city line, color line, colour line, command line, command line interface, conga line, contour line, county line, credit line, danger line, date, date back, date bar, date bread, date from, date line, date of reference, date palm, date plum, date rape, date stamp, delay line, demarcation line, digital subscriber line, direct line, district line, dividing line, dotted line, double date, draw a line, draw the line, drive line, drive line system, drop a line, drop line, due date, electrical line of force, electromagnetic delay line, equinoctial line, equity credit line, fall in line, family line, fault line, feeder line, fence line, field line, finish line, finishing line, firing line, fishing line, flight line, foul line, front line, frown line, fuel line, future date, gag line, gas line, geodesic line, get a line, 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, international, international affairs, international ampere, international association of lions clubs, international atomic energy agency, international bank for reconstruction and developm, international candle, international civil aviation organization, international court of justice, international development association, international finance corporation, international flight, international grandmaster, international intelligence agency, international islamic front for jihad against jews, international jihad, international labor organization, international labour organization, international law, international law enforcement agency, international logistic support, international maritime organization, international monetary fund, international morse code, international nautical mile, international organisation, international organization, international pitch, international relations and security network, international scale, international society for krishna consciousness, international system, international system of units, international terrorism, international wanted notice, international waters, isoclinic line, isogonal line, isogonic line, isometric line, keep in line, kennedy international airport, 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, 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, maturity date, melodic line, mensal line, mooring line, new line, old line, old line state, opening line, out of date, out of line, particular date, party line, personal credit line, personal line of credit, phone line, picket line, pipe line, plantagenet line, plimsoll line, plot line, plumb line, poverty line, power line, private line, product line, production line, program line, property line, punch line, put on the line, rail line, railroad line, railway line, rain date, reception line, red line, regression line, rhumb line, rivet line, rotary international, royal line, sash line, scrimmage line, sell-by date, service line, sewer line, ship of the line, shoot a line, short line, side line, siegfried line, snap line, snow line, sonic delay line, sounding line, 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, systeme international, systeme international d'unites, tag line, target date, telegraph line, telephone line, ticket line, timber line, to date, 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, unemployment line, united nations international children's emergency, verse line, vortex line, waiting line, water line, wats line, white line, yard line