The noun plan has 3 senses (first 3 from tagged texts)
1. (438) plan, program, programme -- (a series of steps to be carried out or goals to be accomplished; "they drew up a six-step plan"; "they discussed plans for a new bond issue")
2. (43) design, plan -- (an arrangement scheme; "the awkward design of the keyboard made operation difficult"; "it was an excellent design for living"; "a plan for seating guests")
3. (23) plan, architectural plan -- (scale drawing of a structure; "the plans for City Hall were on file")
Overview of verb plan
The verb plan has 4 senses (first 4 from tagged texts)
1. (44) plan, be after -- (have the will and intention to carry out some action; "He plans to be in graduate school next year"; "The rebels had planned turmoil and confusion")
2. (27) plan -- (make plans for something; "He is planning a trip with his family")
3. (17) plan, project, contrive, design -- (make or work out a plan for; devise; "They contrived to murder their boss"; "design a new sales strategy"; "plan an attack")
4. (2) design, plan -- (make a design of; plan out in systematic, often graphic form; "design a better mousetrap"; "plan the new wing of the museum")