doubled
v.v. to become twice as big or twice as much as before. You also use it when you make something twice its original size.
v. to increase in size, amount, or value by a factor of two; to make something twice as great. Functions as both a transitive and intransitive verb.
The price of bread doubled in just one year.
The company doubled its workforce after winning a major contract from the government.
Economic analysts noted that while production costs had doubled over the decade, the retail price remained stable due to increased automation in the factory.
As a transitive verb, it takes a direct object; as an intransitive verb, it describes a subject that grows by 100%.
The price was doubled by itselfThe price doubledWhen something increases in size on its own, use the active voice without a reflexive pronoun.