The crossword solution for the term PLAN TO TAKE OFF is DIET. DIET is a term used to describe the food and drink a person consumes on a regular basis. It is also used to refer to a specific plan or regimen of eating, such as a weight loss DIET. Dieting is often used to achieve a certain goal, such as losing weight or improving health. The phrase 'plan to take off' can be interpreted as a plan to start a DIET.