12-letter words containing i, s, t
- antitussives — Plural form of antitussive.
- anton sailer — Anton [ahn-tohn] /ˈɑn toʊn/ (Show IPA), ("Toni") 1935–2009, Austrian skier.
- antoninianus — an ancient Roman coin made either of silver or bronze and equal in value to two denarii
- anxious seat — a bench near the preacher at revival meetings, for those with a troubled conscience who seek salvation
- aphoristical — Alternative form of aphoristic.
- apiculturist — beekeeping, especially on a commercial scale for the sale of honey.
- apocalyptist — the writer of the Apocalypse or a related work
- apostatizing — Present participle of apostatize.
- apostle bird — a gregarious grey-and-brown Australian nest-building bird, Struthidea cinerea
- apostolicity — the quality of being apostolic
- apostrophise — to address by apostrophe.
- apostrophize — to address an apostrophe to
- apothecaries — Plural form of apothecary.
- apotheosized — Simple past tense and past participle of apotheosize.
- apparatchiks — a member of an apparat, especially in a Communist country.
- appassionato — (to be performed) in an impassioned manner
- appellations — Plural form of appellation.
- appellatives — Plural form of appellative.
- appendicitis — Appendicitis is an illness in which a person's appendix is infected and painful.
- appetisement — appetite or hunger
- appetisingly — Alternative spelling of appetizingly.
- applications — Plural form of application.
- applied arts — arts that are put to practical use
- appointments — Plural form of appointment.
- appositeness — The state of being apposite.
- appositional — the act of placing together or bringing into proximity; juxtaposition.
- appraisement — the act of estimating or judging the nature or value of something or someone.
- appreciators — to be grateful or thankful for: They appreciated his thoughtfulness.
- apprentisage — Obsolete form of apprenticeage.
- approbations — approval; commendation.
- appropriates — suitable or fitting for a particular purpose, person, occasion, etc.: an appropriate example; an appropriate dress.
- approximates — near or approaching a certain state, condition, goal, or standard.
- apron string — a string for tying an apron on
- aquaintances — Plural form of aquaintance.
- arbitrageurs — Plural form of arbitrageur.
- arbitrations — Plural form of arbitration.
- archeologist — archaeology.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- archiblastic — of, relating to, or derived from an archiblast.
- archive site — (networking) (Or "FTP site", "FTP archive") An Internet host where program source, documents, e-mail or news messages are stored for public access via anonymous FTP, Gopher, web or other document distribution system. There may be several archive sites (mirrors) for, e.g., a Usenet newsgroup though one may be recognised as the main one. FTP servers were common on the Internet for about ten years but have been largely replaced by web servers since the invention of the World-Wide Web and its HTTP protocol. Some well-known archive sites included Imperial College, UK, UUNET, USA, GNU archive site. The archie service attempted to index the contents of FTP archives, foreshadowing the indexing of the web by Google and others.
- arctic daisy — a daisy, Chrysanthemum arcticum, of arctic regions, having asterlike heads of white or lilac flowers.
- arctophilist — a collector of teddy bears
- arfvedsonite — a type of hornblende with the composition Na3(Fe,Mg)4FeSi8O22(OH)2
- aristocratic — Aristocratic means belonging to or typical of the aristocracy.
- aristolochia — any of various plants of the genus Aristolochia of the family Aristolochiaceae
- aristophanes — ?448–?380 bc, Greek comic dramatist, who satirized leading contemporary figures such as Socrates and Euripides. Eleven of his plays are extant, including The Clouds, The Frogs, The Birds, and Lysistrata
- aristophanic — 448?–385? b.c, Athenian comic dramatist.
- aristotelian — of or relating to Aristotle or his philosophy
- arm-twisting — persuasion
- arming chest — a chest for holding armor and weapons.