1. A scheme, program, or method worked out beforehand for the accomplishment of an objective: a plan of attack.

2. A proposed or tentative project or course of action: had no plans for the evening.

3. A systematic arrangement of elements or important parts; a configuration or outline: a seating plan; the plan of a story.

4. A drawing or diagram made to scale showing the structure or arrangement of something.

5. In perspective rendering, one of several imaginary planes perpendicular to the line of vision between the viewer and the object being depicted.

6. A program or policy stipulating a service or benefit: a pension plan.

1. To formulate a scheme or program for the accomplishment, enactment, or attainment of: plan a campaign.

2. To have as a specific aim or purpose; intend: They plan to buy a house.

3. To draw or make a graphic representation of.

Synonyms: These nouns denote a method or program in accordance with which something is to be done or accomplished: has no vacation plans; a blueprint for reorganizing the company; social conventions of human design; an urban-renewal project; a new scheme for conservation; a strategy for survival.