Adjacent Words

Extension definitions

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Webster's 1828 Dictionary

EXTEN'SION, n. [L. extension.] The act of extending; a stretching.
1. The state of being extended; enlargement in breadth, or continuation of length.
2. In philosophy, that property of a body by which it occupies a portion of space.

WordNet (r) 3.0 (2005)

n
1: a mutually agreed delay in the date set for the completion of a job or payment of a debt; "they applied for an extension of the loan"
2: act of expanding in scope; making more widely available; "extension of the program to all in need"
3: the spreading of something (a belief or practice) into new regions [syn: propagation, extension]
4: an educational opportunity provided by colleges and universities to people who are not enrolled as regular students [syn: extension, extension service, university extension]
5: act of stretching or straightening out a flexed limb [ant: flexion, flexure]
6: a string of characters beginning with a period and followed by one or more letters; the optional second part of a PC computer filename; "most applications provide extensions for the files they create"; "most BASIC files use the filename extension .BAS" [syn: extension, filename extension, file name extension]
7: the most direct or specific meaning of a word or expression; the class of objects that an expression refers to; "the extension of `satellite of Mars' is the set containing only Demos and Phobos" [syn: reference, denotation, extension]
8: the ability to raise the working leg high in the air; "the dancer was praised for her uncanny extension"; "good extension comes from a combination of training and native ability"
9: amount or degree or range to which something extends; "the wire has an extension of 50 feet" [syn: extension, lengthiness, prolongation]
10: an additional telephone set that is connected to the same telephone line [syn: extension, telephone extension, extension phone]
11: an addition to the length of something [syn: elongation, extension]
12: an addition that extends a main building [syn: annex, annexe, extension, wing]

Merriam Webster's

noun Etymology: Middle English, from Late Latin extension-, extensio, from Latin extendere Date: 15th century 1. a. the action of extending ; state of being extended b. an enlargement in scope or operation <tools are extensions of human hands> 2. a. the total range over which something extends ; compass b. denotation 4 3. a. the stretching of a fractured or dislocated limb so as to restore it to its natural position b. an unbending movement around a joint in a limb (as the knee or elbow) that increases the angle between the bones of the limb at the joint — compare flexion 4a 4. a property whereby something occupies space 5. an increase in length of time; specifically an increase in time allowed under agreement or concession <was granted an extension> 6. a program that geographically extends the educational resources of an institution by special arrangements (as correspondence courses) to persons otherwise unable to take advantage of such resources 7. a. a part constituting an addition b. a section or line segment forming an additional length c. an extra telephone connected to the principal line d. a length of natural or synthetic hair that is worn attached to one's natural hair 8. a mathematical set (as a field or group) that includes a given and similar set as a subset

Oxford Reference Dictionary

n. 1 the act or an instance of extending; the process of being extended. 2 prolongation; enlargement. 3 a part enlarging or added on to a main structure or building. 4 an additional part of anything. 5 a a subsidiary telephone on the same line as the main one. b its number. 6 a an additional period of time, esp. extending allowance for a project etc. b permission for the sale of alcoholic drinks until later than usual, granted to licensed premises on special occasions. 7 extramural instruction by a university or college (extension course). 8 extent, range. 9 Logic a group of things denoted by a term. Derivatives: extensional adj. Etymology: ME f. LL extensio (as EXTEND)

Webster's 1913 Dictionary

Extension Ex*ten"sion, n. [L. extensio: cf. F. extension. See Extend, v. t.] 1. The act of extending or the state of being extended; a stretching out; enlargement in breadth or continuation of length; increase; augmentation; expansion. 2. (Physics) That property of a body by which it occupies a portion of space. 3. (Logic & Metaph.) Capacity of a concept or general term to include a greater or smaller number of objects; -- correlative of intension. The law is that the intension of our knowledge is in the inverse ratio of its extension. --Sir W. Hamilton. The extension of [the term] plant is greater than that of geranium, because it includes more objects. --Abp. Thomson. 4. (Surg.) The operation of stretching a broken bone so as to bring the fragments into the same straight line. 5. (Physiol.) The straightening of a limb, in distinction from flexion. 6. (Com.) A written engagement on the part of a creditor, allowing a debtor further time to pay a debt. Counter extension. (Surg.) See under Counter. Extension table, a table so constructed as to be readily extended or contracted in length.

Collin's Cobuild Dictionary

(extensions) 1. An extension is a new room or building which is added to an existing building or group of buildings. N-COUNT 2. An extension is a new section of a road or rail line that is added to an existing road or line. ...the Jubilee Line extension. N-COUNT: usu with supp 3. An extension is an extra period of time for which something lasts or is valid, usually as a result of official permission. He first entered Britain on a six-month visa, and was given a further extension of six months... N-COUNT 4. Something that is an extension of something else is a development of it that includes or affects more people, things, or activities. Many Filipinos see the bases as an extension of American colonial rule... N-COUNT: usu N of n 5. An extension is a telephone line that is connected to the switchboard of a company or institution, and that has its own number. The written abbreviation ext. is also used. She can get me on extension 308... N-COUNT: also N num 6. An extension is a part which is connected to a piece of equipment in order to make it reach something further away. ...a 30-foot extension cord... N-COUNT

Soule's Dictionary of English Synonyms

n. 1. Extendedness. 2. Expansion, dilatation, dilation, enlargement, increase, augmentation.

Moby Thesaurus

L, access, accession, accessory, accompaniment, accretion, accrual, accruement, accumulation, acreage, addenda, addendum, additament, addition, additive, additory, additum, adjunct, adjuvant, advance, affective meaning, aggrandizement, alternate, alternative school, ambit, ampliation, amplification, amplitude, annex, annexation, appanage, appendage, appendant, appendix, appreciation, appurtenance, appurtenant, area, arm, ascent, attachment, augment, augmentation, ballooning, bearing, bigness, blab school, bloating, block, boarding school, body, boom, boost, breadth, broadening, buildup, bulk, caliber, call box, capacity, central school, coda, coin telephone, coloring, coming after, compass, complement, comprehensiveness, concomitant, connotation, consecution, consecutiveness, consequence, consolidated school, continualness, continuance, continuation, continuation school, continuing, continuity, continuum, corollary, correspondence school, country day school, coverage, crescendo, dame school, day school, denotation, deployment, depth, descent, desk telephone, development, dial telephone, diameter, dimension, dimensions, dispersion, distance, distension, drawing out, drift, edema, effect, elevation, ell, elongation, emptiness, empty space, endurance, enlargement, essence, evening school, expanse, expansion, extensiveness, extent, extrapolation, fanning out, field, finishing school, fixture, flare, flood, following, force, free school, gain, galactic space, gauge, girth, gist, grammatical meaning, greatening, greatness, growth, gush, height, hike, hiking, idea, impact, implication, import, increase, increment, infinite space, infinity, inflation, informal school, intension, interstellar space, jump, largeness, leap, length, lengthening, lengthiness, lexical meaning, line, lineage, linear measures, lingering, literal meaning, logical sequence, long time, longitude, longness, magnification, magnitude, maintenance, mass, meaning, measure, measurement, mileage, mounting, mouthpiece, multiplication, night school, nongraded school, nothingness, offshoot, open classroom school, orbit, order, order of succession, outer space, overall length, overtone, pay station, pendant, pensionat, perpetuation, perpetuity, perseverance, persistence, pertinence, phone, pith, platoon school, point, posteriority, postposition, practical consequence, private school, procession, procrastination, production, productiveness, progress, progression, progressive school, proliferation, prolongation, proportion, proportions, protraction, public school, public telephone, purport, pursuance, purview, push-button telephone, radius, raise, raising, range, range of meaning, reach, real meaning, receiver, reference, referent, reinforcement, relation, relevance, repetition, rise, rotation, run, scale, school without walls, scope, semantic cluster, semantic field, sense, sequence, series, side effect, side issue, significance, signification, significatum, signifie, size, snowballing, space, span, span of meaning, spatial extension, special school, sphere, spirit, splay, spread, spreading, spreading out, staying power, storefront school, straight course, strain, street academy, stretch, stretching, stringing out, structural meaning, subjunction, substance, succession, successiveness, suffixation, sum, sum and substance, summer school, superficial extension, supplement, surface, surge, sustained action, sustenance, sweep, swelling, symbolic meaning, tailpiece, telephone, telephone booth, telephone engineering, telephone extension, telephone mechanics, telephone receiver, telephonics, telephony, tenor, tension, totality of associations, tract, transferred meaning, transmitter, tumescence, unadorned meaning, undergirding, undertone, uninterrupted course, union school, unremittingness, up, upping, upsurge, upswing, uptrend, upturn, vacation school, value, volume, wall telephone, waxing, way, widening, width, wing, yardage