largest possible nounthe largest possible number, price or quantity ExampleIt is the maximum the insurance company will pay.(NoteThe plural is maxima or maximums.)Usageup to a maximum of £10no more than £10Usageto increase exports to the maximumto increase exports as much as possibleadjectivelargest possible Examples40 per cent is the maximum income tax rate or the maximum rate of tax. • The maximum load for the truck is one ton. • Maximum production levels were reached last week.Usageto increase production to the maximum levelto increase it as much as possible the largest possible number, price or quantity