13-letter words containing n, i, s, a
- arteriovenous — of, relating to, or affecting an artery and a vein
- artesian well — well sunk through impermeable strata receiving water from an area at a higher altitude than that of the well
- articulations — Plural form of articulation.
- arundinaceous — resembling a reed
- as it happens — You use as it happens in order to introduce a statement, especially one that is rather surprising.
- as much again — twice as much
- as we know it — If you talk about a thing or system as we know it, you are referring to the form in which it exists now and which is familiar to most people.
- ascension day — the 40th day after Easter, when the Ascension of Christ into heaven is celebrated
- ascensiontide — the ten days from Ascension Day to the day before Whit Sunday
- ascertainable — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- ascertainably — In a way that can be ascertained.
- ascertainment — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- aschelminthes — a major grouping (formerly a phylum) of small-to-microscopic pseudocoelomate organisms, as the rotifers, nematodes, and gastrotriches, all of which are now classified as separate phyla.
- ascoli piceno — a town in E central Italy, in the Marches: capital of the Roman province of Picenum; site of the massacre of all its Roman citizens in the Social War in 90 bc. Pop: 51 375 (2001)
- aspirationals — Plural form of aspirational.
- assassinating — Present participle of assassinate.
- assassination — to kill suddenly or secretively, especially a politically prominent person; murder premeditatedly and treacherously.
- assassinators — Plural form of assassinator.
- assembly line — An assembly line is an arrangement of workers and machines in a factory, where each worker deals with only one part of a product. The product passes from one worker to another until it is finished.
- assentiveness — the tendency to concur or comply
- assertiveness — confidently aggressive or self-assured; positive: aggressive; dogmatic: He is too assertive as a salesman.
- assiduousness — constant; unremitting: assiduous reading.
- assignability — The quality of being assignable.
- assigned risk — a risk that, under state law, is assigned to an insurer from a pool of insurers who would not otherwise accept it.
- assimilations — Plural form of assimilation.
- assistantship — a graduate post which requires the student to carry out some teaching duties in return for financial assistance
- associational — relating to association or alliance or an association, alliance or affiliation
- assumptionist — Augustinian of the Assumption.
- astereognosis — inability to recognize objects by touch
- asti spumante — a sweet, sparkling Italian white wine with a muscat flavor.
- astonishingly — causing astonishment or surprise; amazing: an astonishing victory; an astonishing remark.
- astonishments — Plural form of astonishment.
- astrodynamics — the study of the motion of natural and artificial bodies in space
- astronautical — of or relating to astronautics or astronauts.
- at a discount — below the regular price
- at first hand — If you learn or experience something at first hand, you experience it yourself or learn it directly rather than being told about it by other people.
- at this point — at this moment in time
- aten asteroid — one of a small group of asteroids whose orbits cross that of the earth and whose semimajor axes are smaller than that of the earth.
- athenagoras i — (Aristocles Spyrou) 1886–1972, Archbishop Ecumenical of Constantinople and Ecumenical Patriarch of the Greek Orthodox Church 1948–72.
- atherogenesis — (medicine) The formation of atheromas, especially on the walls of the arteries.
- atrociousness — The state of being atrocious.
- attentiveness — characterized by or giving attention; observant: an attentive audience.
- attitudinizes — Third-person singular simple present indicative form of attitudinize.
- auction house — a commercial company that specializes in selling items at auction
- audaciousness — Risky or daring behaviour.
- augmentations — Plural form of augmentation.
- aum shinrikyo — a syncretistic Japanese cult combining elements of Buddhism, Hinduism, and Christianity, founded by Shoko Asahara in 1986; responsible for a number of murders and in particular a nerve-gas attack on the Tokyo underground in 1995
- austenitizing — to form austenite in (a ferrous alloy) by heating.
- austin dobson — (Henry) Austin, 1840–1921, English poet, biographer, and essayist.
- australianism — the Australian national character or spirit