use or exercise the mind or one's power of reason in order to make inferences, decisions, or arrive at a solution or judgments

an act of formulating a program for a definite course of action

a notebook for recording appointments and things to be done, etc.

an arrangement scheme

a series of steps to be carried out or goals to be accomplished

a person who makes plans

plan for an activity or event

plan in detail

present for consideration, examination, criticism, etc.

make up plans or basic details for

plan secretly, usually something illegal