1 (increase) [+production, sales] aumentar; [+campaign] intensificar; [+attacks, attempts, efforts] intensificar; redoblar the response of the government has been to step up its attacks on guerrilla encampments Major also stepped up his attacks on Labor leader Neil Kinnock the Shining Path has stepped up attacks on the capital, Lima we need to step up production urgently they're stepping up their campaign to expose hypocrisy in the church as dusk fell the police stepped up their efforts to find the children efforts have been stepped up to tow the vessel into port
2 (Electricity and Electronics) [+current] aumentar if you want to step up your voltage, it's quite simple
