Planner vs Planar - What's the difference?

As a noun planner

is one who plans.

of or pertaining to a plane.

(wikipedia planner)

(en noun)

One who plans.

Johnny is a good planner . He starts his work in time to get it finished by the deadline.

Ms. Gunston is a planner for the county.

A notebook or software in which one keeps notations of items such as appointments, tasks, projects, and contacts.

* route planner * daily planner * day planner * wedding planner * urban planner * meeting planner * personal planner

(en adjective)

Of or pertaining to a plane.

A planar projection of a three-dimensional object is its projection onto a plane.

Flat, two-dimensional.

(graph theory, of a graph) Able to be embedded in the plane with no edges intersecting.

A complete graph with more than four nodes is never planar .

(transistor chip, semiconductor devices) Having a flat profile, not etched into a mesa.

* antiplanar * nonplanar * synplanar