English to English Dictionary

Assumption

A thing that is accepted as true or as certain to happen, without proof.

Assurance

A positive declaration intended to give confidence; a promise or guarantee.

Astray

Away from the correct path or direction; wandering.

Astronomy

The branch of science which deals with celestial objects, space, and the physical universe as a whole.

At all costs

Regardless of the expense, difficulty, sacrifice, or consequences involved.

Athleticism

The physical qualities that are characteristic of athletes, such as strength, fitness, agility, and coordination.

Atlas

A book of maps or charts.

Atom

The basic unit of a chemical element, consisting of a dense central nucleus surrounded by a cloud of negatively charged electrons.

Atomic

Relating to an atom or atoms, or forming the basic unit of a chemical element.

Attainable

Able to be attained; achievable.

Attic

A space or room just below the roof of a building; a garret.

Attractive force

A physical force that tends to draw objects together, such as gravity or magnetism.