plan noun [F., fr. L. planus flat, level. See Plain, adjective]

1. A draught or form; properly, a representation drawn on a plane, as a map or a chart; especially, a top view, as of a machine, or the representation or delineation of a horizontal section of anything, as of a building; a graphic representation; a diagram.

2. A scheme devised; a method of action or procedure expressed or described in language; a project; as, the plan of a constitution; the plan of an expedition.

God’s plans like lines pure and white unfold. M. R. Smith.

3. A method; a way of procedure; a custom.

The simple plan,
That they should take who have the power,
And they should keep who can. Wordsworth.

Body plan

Floor plan, etc. See under Body, Floor, etc.

Syn. – Scheme; draught; delineation; plot; sketch; project; design; contrivance; device. See Scheme.

Plan, transitive verb [imperfect or past participle Planned; present participle or verbal noun Planning.]

1. To form a delineation of; to draught; to represent, as by a diagram.

2. To scheme; to devise; to contrive; to form in design; as, to plan the conquest of a country.

Even in penance, planning sins anew. Goldsmith.

-- Websters 1913