field trip(n = noun.act) - a group excursion (to a museum or the woods or some historic place) for firsthand examination;
is a kind of excursion, expedition, jaunt, junket, outing, pleasure trip, sashay

athletic field, ball field, baseball field, battle of flodden field, bit field, bosworth field, center field, corn field, dark field illumination, ego trip, electric field, electrostatic field, european field elm, field, field artillery, field balm, field bean, field bindweed, field brome, field capacity, field chamomile, field chickweed, field coil, field corn, field cricket, field crop, field day, field emission, field event, field game, field garlic, field general, field glass, field glasses, field goal, field guide, field gun, field hand, field hockey, field hockey ball, field horsetail, field hospital, field house, field hut, field intensity, field judge, field lens, field line, field lupine, field magnet, field maple, field marigold, field marshal, field mint, field mouse, field mouse-ear, field mushroom, field mustard, field of battle, field of fire, field of force, field of honor, field of operation, field of operations, field of regard, field of study, field of view, field of vision, field officer, field pansy, field pea, field pennycress, field poppy, field press censorship, field pussytoes, field ration, field sandbur, field scabious, field soybean, field spaniel, field sparrow, field speedwell, field sport, field strength, field strength unit, field tent, field test, field theory, field thistle, field trial, field winding, field work, field wormwood, flying field, football field, force field, grain field, gravitational field, guilt trip, head trip, hop field, ice field, killing field, landing field, left field, magnetic field, magnetic field strength, microscopic field, mine field, ocean trip, operative field, paddy field, playing field, pleasure trip, potter's field, power trip, quantum field theory, radiation field, right field, round trip, scalar field, scouting trip, solar magnetic field, subject field, take the field, tall field buttercup, track and field, trip, trip hammer, trip line, trip out, trip the light fantastic, trip the light fantastic toe, trip up, trip wire, visual field, wheat field