The apparent relative position of two celestial bodies when one is at an angle of 180 degrees from the other as seen from the Earth.
The difference of quantity or quality between two propositions having the same subject and predicate.
A political party or movement opposed to the party or government in power.
In United States intellectual property law, a proceeding in which an interested party seeks to prevent the registration of a trademark or patent.
The action of opposing or of being in conflict.
An opposite or contrasting position.
A position in which the player on the move must yield with his king allowing his opponent to advance with his own king.
A two-dimensional drawing of a building as seen from above with obscuring or irrelevant details such as roof removed, or of a floor of a building, revealing the internal layout; as distinct from the elevation.
A drawing showing technical details of a building, machine, etc., with unwanted details omitted, and often using symbols rather than detailed drawing to represent doors, valves, etc.
A subscription to a service.
A set of intended actions, usually mutually related, through which one expects to achieve a goal.
A method; a way of procedure; a custom.
To create a plan for.
To intend.
To design (a building, machine, etc.).
To make a plan.