12-letter words containing s, e, n, t, r
- antipleasure — opposed to pleasure
- antipyretics — Plural form of antipyretic.
- antistrophes — Plural form of antistrophe.
- antisymmetry — the correspondence in size, form, and arrangement of parts on opposite sides of a plane, line, or point; regularity of form or arrangement in terms of like, reciprocal, or corresponding parts.
- anton sailer — Anton [ahn-tohn] /ˈɑn toʊn/ (Show IPA), ("Toni") 1935–2009, Austrian skier.
- anzus treaty — Australia, New Zealand, and the United States, especially as associated in the mutual defense treaty (ANZUS Pact or ANZUS Treaty) of 1952.
- apparentness — The state or quality of being apparent.
- appraisement — the act of estimating or judging the nature or value of something or someone.
- apprentisage — Obsolete form of apprenticeage.
- arc cosecant — the angle, measured in radians, that has a cosecant equal to a given number. Symbol: csc −1. Abbreviation: arc csc;
- archenterons — Plural form of archenteron.
- archibenthos — the ocean bottom between the littoral and abyssal zones: from depths of approximately 200 feet (60 meters) to 3300 feet (1000 meters).
- arfvedsonite — a type of hornblende with the composition Na3(Fe,Mg)4FeSi8O22(OH)2
- 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
- aristotelian — of or relating to Aristotle or his philosophy
- arm's-length — lacking intimacy or friendliness, esp when possessing some special connection, such as previous closeness
- arming chest — a chest for holding armor and weapons.
- arraignments — Plural form of arraignment.
- arrangements — preparatory measures taken or plans made; preparations
- arseniureted — combined with arsenic
- arsenopyrite — a white or grey metallic mineral consisting of a sulphide of iron and arsenic that forms monoclinic crystals with an orthorhombic shape: an ore of arsenic. Formula: FeAsS
- arthur evans — Sir Arthur John, 1851–1941, English archaeologist.
- arts student — a person studying an arts subject
- ascertaining — to find out definitely; learn with certainty or assurance; determine: to ascertain the facts.
- assertations — Plural form of assertation.
- asseverating — Present participle of asseverate.
- asseveration — the act of asseverating.
- assortedness — the position of being sorted, grouped or harmonized with, well or badly, or provided with a good or bad assortment or mixture
- astral plane — a plane of existence inhabited by astral bodies
- astringently — In the manner of an astringent.
- at intervals — If something happens at intervals, it happens several times with gaps or pauses in between.
- attorneyship — The office or profession of an attorney.
- austronesian — of or relating to Austronesia, its peoples, or their languages
- autochangers — Plural form of autochanger.
- awe-stricken — filled with awe.
- bag snatcher — a thief whose main tactic is to grab women's handbags and run off with them
- bairnsfather — Bruce. 1888–1959, British cartoonist, born in India: best known for his cartoons of the war in the trenches during World War I
- bandersnatch — a fictional creature created by Lewis Carroll in his poem Jabberwocky, and appearing also in The Hunting of the Snark and Through the Looking-Glass
- bankruptcies — Plural form of bankruptcy.
- bar sinister — the condition, implication, or stigma of being of illegitimate birth
- barnstormers — Plural form of barnstormer.
- battlefronts — Plural form of battlefront.
- bean sprouts — the sprouts of newly germinated mung beans, eaten as a vegetable, esp in Chinese dishes
- bean-shooter — peashooter.
- bear witness — to give written or oral testimony
- beardtongues — Plural form of beardtongue.
- belligerents — warlike; given to waging war.
- benefactress — a female benefactor
- beta orionis — Rigel
- beta version — beta testing