arrangement - an orderly grouping (of things or persons) considered as a unit; the result of arranging; "a flower arrangement"

flight - a formation of aircraft in flight

military formation - a formation of troops

backfield - the offensive football players who line up behind the linemen

secondary - the defensive football players who line up behind the linemen

line - a formation of people or things one behind another; "the line stretched clear around the corner"; "you must wait in a long line at the checkout counter"

line - a formation of people or things one beside another; "the line of soldiers advanced with their bayonets fixed"; "they were arrayed in line of battle"; "the cast stood in line for the curtain call"

center - the middle of a military or naval formation; "they had to reinforce the center"

flank, wing - the side of military or naval formation; "they attacked the enemy's right flank"

head - the front of a military formation or procession; "the head of the column advanced boldly"; "they were at the head of the attack"

rear - the back of a military formation or procession; "infantrymen were in the rear"

raster - formation consisting of the set of horizontal lines composed of pixels that is used to form an image on a CRT

rigging, rig - formation of masts, spars, sails, etc., on a vessel

split - (tenpin bowling) a divided formation of pins left standing after the first bowl; "he was winning until he got a split in the tenth frame"

placement, arrangement - the spatial property of the way in which something is placed; "the arrangement of the furniture"; "the placement of the chairs"

manufacture, fabrication - the act of making something (a product) from raw materials; "the synthesis and fabrication of single crystals"; "an improvement in the manufacture of explosives"; "manufacturing is vital to Great Britain"

filing - the act of using a file (as in shaping or smoothing an object)

forging - shaping metal by heating and hammering

metalworking, metalwork - the activity of making things out of metal in a skillful manner

granulation - the act of forming something into granules or grains; "the granulation of medicines"

grooving, rifling - the cutting of spiral grooves on the inside of the barrel of a firearm

commencement, start, beginning - the act of starting something; "he was responsible for the beginning of negotiations"

unionisation, unionization - act of forming labor unions; "the issue underlying the strike was unionization"

collectivisation, collectivization - the organization of a nation or economy on the basis of collectivism

communisation, communization - the organization of a nation of the basis of communism

federation - the act of constituting a political unity out of a number of separate states or colonies or provinces so that each member retains the management of its internal affairs

colonisation, colonization, settlement - the act of colonizing; the establishment of colonies; "the British colonization of America"

natural object - an object occurring naturally; not made by man

geology - a science that deals with the history of the earth as recorded in rocks

aquifer - underground bed or layer yielding ground water for wells and springs etc

beach - an area of sand sloping down to the water of a sea or lake

cliff, drop-off, drop - a steep high face of rock; "he stood on a high cliff overlooking the town"; "a steep drop"

delta - a low triangular area where a river divides before entering a larger body of water

diapir - a domed rock formation where a core of rock has moved upward and pierced through the more brittle overlying strata

folium - a thin layer or stratum of (especially metamorphic) rock

foreshore - the part of the seashore between the high-water mark and the low-water mark

ice mass - a large mass of ice

lakefront - land bordering a lake

massif - a block of the earth's crust bounded by faults and shifted to form peaks of a mountain range

monocline - a geological formation in which all strata are inclined in the same direction

mouth - the point where a stream issues into a larger body of water; "New York is at the mouth of the Hudson"

natural depression, depression - a sunken or depressed geological formation

natural elevation, elevation - a raised or elevated geological formation

oceanfront - land bordering an ocean

Pillars of Hercules - the two promontories at the eastern end of the Strait of Gibraltar; according to legend they were formed by Hercules

chain of mountains, mountain chain, mountain range, range of mountains, range, chain - a series of hills or mountains; "the valley was between two ranges of hills"; "the plains lay just beyond the mountain range"

relict - geological feature that is a remnant of a pre-existing formation after other parts have disappeared

ridge - a long narrow range of hills

shore - the land along the edge of a body of water

incline, slope, side - an elevated geological formation; "he climbed the steep slope"; "the house was built on the side of the mountain"

natural spring, outpouring, spring, fountain, outflow - a natural flow of ground water

scree, talus - a sloping mass of loose rocks at the base of a cliff

mineral vein, vein - a layer of ore between layers of rock

wall - a vertical (or almost vertical) smooth rock face (as of a cave or mountain)

groundwater level, water table, water level - underground surface below which the ground is wholly saturated with water; "spring rains had raised the water table"

encrustation, incrustation - the formation of a crust

natural action, natural process, activity, action - a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"

reticulation - (photography) the formation of a network of cracks or wrinkles in a photographic emulsion

creating by mental acts - the act of creating something by thinking

affixation - formation of a word by means of an affix