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general::
noun ADJ. high, low | constant | changing, varying | mains, supply Most house lighting runs at the full mains voltage of 240 volts. | input, output VERB + VOLTAGE increase, step up, turn up | decrease, step down, turn down | produce | apply A voltage is then applied across the cell electrodes. PREP. at a ~ The motor operates at low voltages.
Oxford Collocations Dictionary