Refer Me Aq1

Aquaculture
Cultivation of plants or breeding of animals in water.

Aqua fortis
(Chemistry)
Nitric acid

Aquanaut
Underwater explorer or swimmer

Aqua regia
(Chemistry)
Mixture of nitric acid and hydrocholoric acid which can dissolve gold platinum. Hence it is called royal water.
Aquaris
A sign of zodiac

Aqueduct
Artificial elevated structure for carrying water

Refer Me Ar1

Arabic
Language of the Arabs

Arabist
A student of Arabic language or Arab history and civilisation

Arachnid
(Zoology) Member of the class Arachnids, comprising spiders, scorpions, tikcs and mites.

Araldite

One of the various epoxy resins used as strong cement

Arbiter
Judge, arbitrator

Arbitrage
Dictionary meaning: Traffic in bills of exchange or stocks to take advantage of different prices in other markets

Arbitrageur
One who engages in arbitrage

Arbitration
Settlement of a dispute by an arbitrator

Arbitrator
Person appointed by two parties to settle dispute.

Arbor
Axle or spindle on which something revolves
Example: tool holder in lathe
Arbor day
Day set apart annually in US, Australia and some other places for tree planting

Refer Me Ar2

Arc

Part of circumference of circle or other curve

Arcade

passage arched over, any covered walk, A covered walk with shops along one or both sides

Arch

A curved structure as support for bridge, roof, floor, etc.

Archaeology

Study of human antiquities

Refer Me As10

Assam

A state in India

Assignment

Work allocated to a person. For example work given to a student by a teacher

Assurance

People confuse betweenassurance and insurance.

The Concise Oxford Dictionary brings out the subtle difference between the two terms.
Assurance refers to those insurance policies which guarantee payment on death of the person whose life is insured or on expiry of the prescribed period, whereas insurance refers to those policies where payment would be made only in the prescribed circumstances — death or accident happening within a specified period.

Refer Me Atavism to Ataxy

Atavism
Resemblance to remote ancestors rather than parents

Ataxy
Imperfect control of voluntary bodily functions

Refer Me Atheism to Athlete

Atheism

Disbelief in the existenc of God or gods

Athlete

A skilled performer in physical exercises

Refer Me At6

Atlantic ocean

Ocean between America and Europe continents.

Atlas

A book of maps or charts