assurance
The act of assuring; a declaration intended to inspire full confidence; something designed to give confidence to someone.
The state of being assured; total confidence or trust; a lack of doubt; certainty; guarantee.
Firmness of mind; undoubting steadiness; intrepidity, courage, or self-confidence.
Excessive boldness; impudence; audacity
Betrothal; affiance.
Insurance; a contract for the payment of a sum on occasion of a certain event, as loss or death. Assurance is used in relation to life contingencies, and insurance in relation to other contingencies. It is called temporary assurance, in the time within which the contingent event must happen is limited.
Any written or other legal evidence of the conveyance of property; a conveyance; a deed.
Subjective certainty of one's salvation.

assurances
plural of assurance

assuraunce
Obsolete form of assurance.

assuraunces
plural of assuraunce

assuredness
The state or quality of being assured.

assurgency
A tendency to rise.

assuror
An assurer; an underwriter; an insurer.

asswagon
A term of abuse.

asswagons
plural of asswagon

assweed
A term of abuse.

astaticism
The state of being astatic.

astatination
Reaction with astatine

astatinations
plural of astatination

asteism
Polite irony; a genteel and ingenious manner of deriding another.

asteisms
plural of asteism

asteismus
Witty dialog or response.
In dialog, a retort based on a punning use of another speaker's word or metaphor.

astely
Absence of steles.

astereognosia
Synonym of astereognosis (which is the more common synonym)

astereognosis
The inability to identify an object by touch without visual input; a form of tactile agnosia.

asterixes
plural of asterixis

asterixis
An abnormal muscular tremor characterized by involuntary jerking of the hands

asteroite
A variety of augite.

asteroseismology
The study of oscillations in stars.

asterseismology
Alternative form of asteroseismology.

asthenicity
The quality of being asthenic.

asthenobiosis
A form of hibernation or estivation that is not dependent on season, temperature or humidity

asthenosphere
A portion of the Earth's upper mantle, below the lithosphere.

asthenospheres
plural of asthenosphere

asthenoteratospermia
Asthenoteratozoospermia.

asthenoteratozoospermia
A condition in which the motility and morphology of the sperm are both abnormal.

asthenozoospermia
Condition in which a large proportion of spermatozoa produced in an ejaculate possess poor motility.

asthma
A long-term respiratory condition, in which the airways may unexpectedly and suddenly narrow, often in response to an allergen, cold air, exercise, or emotional stress. Symptoms include wheezing, shortness of breath, chest tightness, and coughing.

asthmas
plural of asthma

asthmata
plural of asthma

asthore
treasure (as a term of endearment)

asthores
plural of asthore

astipulation
stipulation; agreement

astipulations
plural of astipulation

astoniedness
The state or quality of being astonied.

astonishedness
The state or quality of being astonished.

astonishingness
The state or quality of being astonishing.

astonishment
The feeling or experience of being astonished; great surprise.
Something very surprising.
Loss of physical sensation; inability to move a part of the body.
Loss of mental faculties, inability to think or use one's senses.
Loss of composure or presence of mind.

astonishments
plural of astonishment

astoundedness
The state of being astounded; astonishment.

astoundingness
The quality of being astounding.

astoundment
amazement

astr
Abbreviation of astrology.
Abbreviation of astronomy.

astragalectomies
plural of astragalectomy

astragalectomy
The surgical removal of the astragalus, or talus, in order to stabilize the ankle.

astraphobia
An abnormal fear of thunder and lightning.

astrapophobia
astraphobia

astrapothere
Any of several extinct, hoofed, herbivorous mammals, of the order Astrapotheria, from Cenozoic South America.

astrapotheres
plural of astrapothere

astriction
The act of binding; restriction; obligation.
A contraction of parts by applications; the action of an astringent substance.
constipation
astringency
An obligation to have the grain growing on certain lands ground at a certain mill, the owner paying a toll. (The lands were said to be astricted to the mill.)

astrictions
plural of astriction

astringence
Alternative form of astringency.

astringences
plural of astringence

astringencies
plural of astringency

astringency
An astringent taste.
That which acts as an astringent, causing contraction of soft tissue to restrict the flow of blood.

astrionics
The science dealing with the application of electronics to astronautics.

astroagriculture
The cultivation of crops in space

astroanthropology
Synonym of xenoanthropology.

astroarchaeology
archaeoastronomy

astroarchitecture
Synonym of xenoarchitecture.

astroballistics
The ballistics of high-velocity projectiles, especially of meteors etc

astrobiology
The study of life anywhere in the universe, including Earth.

astrobotany
Synonym of xenobotany.

astroclimate
The part of the climate of a place that is a result of solar radiation

astroclimates
plural of astroclimate

astrocompass
A form of compass in which the direction is evaluated by sighting stars of a known position.

astrocompasses
plural of astrocompass

astrodiagnosis
The use of astrology to diagnose illness.

astrodynamics
The study of the motion of rockets and spacecraft, usually from Newton's laws of motion, Newtonian gravity, and Kepler's laws

astroecology
The study of the interactions of biota with space environments.

astroengineering
The construction of megastructures in space by technologically advanced beings.

astrofest
An astronomy-themed festival or exhibition.

astrofests
plural of astrofest

astrogation
Astronavigation (navigation through space).

astrogenesis
The formation of astrocytes.

astrogeny
The creation or evolution of the stars or heavens.

astrogeodesy
The use of geodetic techniques in astronomy.

astrogeography
The study of exoplanet geography.

astrogeology
The science dealing with the structure and composition of planets and other bodies in the solar system.

astrogeometry
The study of geometry of the universe or stars.

astrogeophysics
A branch of geophysics dealing with material found in space, and the surface and internal processes of celestial bodies.

astroglaciology
Part of glaciology studying the effects of ice and glaciers on extraterrestrial bodies.

astrogliogenesis
The production of astrogliosis

astrognosy
Knowledge of the stars, especially the fixed stars; the branch of astronomy dealing with the fixed stars.

astrogony
Alternative form of astrogeny.

astrographies
plural of astrography

astrography
Synonym of uranography (“the mapping of celestial bodies”).

astrohistory
The study of alien history.

astroid
A hypocycloid with four cusps.

astroids
plural of astroid

astrointerferometer
A combination of astronomical telescopes used as an interferometer

astrointerferometers
plural of astrointerferometer

astrolatry
The worship of the stars.

astrolaw
The practice of law in outer space.

astrolithology
The science of aerolites.

astrologese
The jargon used by astrologers.

astrologism
An astrological mindset or concept.

astrologisms
plural of astrologism

astromathematics
The branches of mathematics used in the study of astronomy, astrophysics and cosmology.

astrometeorology
The practice of using astrology for weather forecasting.

astrometries
plural of astrometry

astrometry
The branch of astronomy that deals with the measurement of the positions and motions of celestial bodies, particularly stars.

astromicrobiology
Synonym of xenomicrobiology.

astromythologies
plural of astromythology

astromythology
Astrological mythology.

astronautics
Navigation through space.
The science and technology of space flight.

astronav
astronavigation