plural of title plan

(idiomatic) After a plan against an enemy is drafted, there will be unexpected elements from the opposition that will call for improvisation.

(idiomatic) A proverbial expression used to signify the futility of making detailed plans when the ability to fully or even partially execute them is uncertain.

plural of open floor plan

plural of retirement annuity plan

plural of dividend reinvestment plan

plural of top-hat plan

Things don't always work out as they were planned.

No matter how a project is planned, accidents or misfortune can still happen with it.

Alternative form of the best laid plans of mice and men often go awry