double verb
ADV. more than Our profits have more than doubled this year. | almost, nearly, practically, virtually The price of houses has nearly doubled in the last ten years. | effectively | approximately, roughly
PREP. in The village has approximately doubled in size since 1960. | to The party almost doubled its share of the vote to 21.5%.
You can also check other dicts: double (English, 中文解释 ), wordnet sense, Collins Definition