English to English Dictionary

Oasis

A fertile or green spot in a desert, made so by the presence of water.

Oat

A hardy cereal plant that tolerates poor soils, cultivated for its edible seeds.

Obeisance

A deferential gesture, such as a bow or curtsy, expressing deep respect or reverence.

Objective

A thing aimed at or sought; a goal.

Obligation

A legal or moral duty to do or not do something.

Obliged

Required or constrained by law, conscience, or force to do something.

Obliqueness

The state or quality of being neither parallel nor at a right angle to a specified or implied line; slanting or inclination.

Obliterate

To destroy utterly; wipe out.

Obscure

Not discovered or known about; uncertain.

Obscurity

The state of being unknown, inconspicuous, or unimportant.

Observatory

A room or building housing an astronomical telescope or other scientific equipment for the study of natural phenomena.

Observe

To watch carefully the way something happens or someone behaves.