| antiphonary | (noun) bound collection of antiphons | Synonyms: antiphonal |
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| bicentenary | (noun) the 200th anniversary (or the celebration of it) | Synonyms: bicentennial |
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| bimillenary | (noun) a span of 2000 years | Synonyms: bimillennium |
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| (noun) the 2000th anniversary (or the celebration of it) | Synonyms: bimillennium |
| binary | (noun) a pre-compiled, pre-linked program that is ready to run under a given operating system; a binary for one operating system will not run on a different operating system | Synonyms: binary program |
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| (noun) a system of two stars that revolve around each other under their mutual gravitation | Synonyms: binary star, double star |
| canary | (noun) any of several small Old World finches | Synonyms: canary bird |
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| (noun) a moderate yellow with a greenish tinge | Synonyms: canary yellow |
| (noun) a female singer | - |
| (noun) someone acting as an informer or decoy for the police | Synonyms: fink, sneak, sneaker, snitch, snitcher, stool pigeon, stoolie, stoolpigeon |
| catenary | (noun) the curve theoretically assumed by a perfectly flexible and inextensible cord of uniform density and cross section hanging freely from two fixed points | - |
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| centenary | (noun) the 100th anniversary (or the celebration of it) | Synonyms: centennial |
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| confectionary | (noun) a confectioner's shop | Synonyms: candy store, confectionery |
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| consuetudinary | (noun) a manual describing the customs of a particular group (especially the ceremonial practices of a monastic order) | Synonyms: consuetudinal |
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| coronary | (noun) obstruction of blood flow in a coronary artery by a blood clot (thrombus) | Synonyms: coronary thrombosis |
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| counterrevolutionary | (noun) a revolutionary whose aim is to reverse the changes introduced by an earlier revolution | Synonyms: counter-revolutionist, counterrevolutionist |
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| decennary | (noun) a period of 10 years | Synonyms: decade, decennium |
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| dictionary | (noun) a reference book containing an alphabetical list of words with information about them | Synonyms: lexicon |
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| functionary | (noun) a worker who holds or is invested with an office | Synonyms: official |
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| granary | (noun) a storehouse for threshed grain or animal feed | Synonyms: garner |
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| hymnary | (noun) a songbook containing a collection of hymns | Synonyms: hymnal, hymnbook |
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| imaginary | (noun) (mathematics) a number of the form a+bi where a and b are real numbers and i is the square root of -1 | Synonyms: complex number, complex quantity, imaginary number |
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| legionary | (noun) a soldier who is a member of a legion (especially the French Foreign Legion) | Synonyms: legionnaire |
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| luminary | (noun) a celebrity who is an inspiration to others | Synonyms: guiding light, leading light, notability, notable |
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| mercenary | (noun) a person hired to fight for another country than their own | Synonyms: soldier of fortune |
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| millenary | (noun) a sum or aggregate of one thousand (especially one thousand years) | - |
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| (noun) a span of 1000 years | Synonyms: millennium |
| (noun) the 1000th anniversary (or the celebration of it) | Synonyms: millennium |
| missionary | (noun) someone who attempts to convert others to a particular doctrine or program | - |
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| (noun) someone sent on a mission--especially a religious or charitable mission to a foreign country | Synonyms: missioner |
| octonary | (noun) the cardinal number that is the sum of seven and one | Synonyms: 8, eight, eighter, eighter from Decatur, octad, octet, ogdoad, VIII |
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| ordinary | (noun) (heraldry) any of several conventional figures used on shields | - |
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| (noun) an early bicycle with a very large front wheel and small back wheel | Synonyms: ordinary bicycle |
| (noun) a clergyman appointed to prepare condemned prisoners for death | - |
| (noun) a judge of a probate court | - |
| (noun) the expected or commonplace condition or situation | - |
| pensionary | (noun) a person who works only for money | Synonyms: hireling |
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| (noun) the beneficiary of a pension fund | Synonyms: pensioner |
| preliminary | (noun) a minor match preceding the main event | Synonyms: prelim |
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| (noun) something that serves as a preceding event or introduces what follows | Synonyms: overture, prelude |
| quatercentenary | (noun) the 400th anniversary (or the celebration of it) | Synonyms: quatercentennial |
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| quaternary | (noun) the cardinal number that is the sum of three and one | Synonyms: 4, four, foursome, IV, Little Joe, quadruplet, quartet, quatern, quaternion, quaternity, tetrad |
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| quincentenary | (noun) the 500th anniversary (or the celebration of it) | Synonyms: quincentennial |
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| reactionary | (noun) an extreme conservative; an opponent of progress or liberalism | Synonyms: extreme right-winger, ultraconservative |
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| revolutionary | (noun) a radical supporter of political or social revolution | Synonyms: revolutionist, subversive, subverter |
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| semicentenary | (noun) the 50th anniversary (or the celebration of it) | Synonyms: semicentennial |
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| seminary | (noun) a theological school for training ministers or priests or rabbis | - |
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| (noun) a private place of education for the young | - |
| septenary | (noun) the cardinal number that is the sum of six and one | Synonyms: 7, heptad, septet, seven, sevener, VII |
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| tercentenary | (noun) the 300th anniversary (or the celebration of it) | Synonyms: tercentennial, triennial |
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| ternary | (noun) the cardinal number that is the sum of one and one and one | Synonyms: 3, deuce-ace, III, leash, tercet, ternion, terzetto, three, threesome, tierce, trey, triad, trine, trinity, trio, triplet, troika |
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| unary | (noun) the bijective base-1 numeral system: in order to represent a number N, an arbitrarily chosen symbol representing 1 is repeated N times. | Synonyms: unary numeral system |
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| veterinary | (noun) a doctor who practices veterinary medicine | Synonyms: vet, veterinarian, veterinary surgeon |
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| visionary | (noun) a person with unusual powers of foresight | Synonyms: illusionist, seer |
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| (noun) a person given to fanciful speculations and enthusiasms with little regard for what is actually possible | - |