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| NOUN |
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| /ˈfriːkwənsi/ |
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| 1 | U the number of times that something happens during a period of time （某事发生的）频率 |
| +of Changes in sea temperature will increase the frequency of hurricanes. 海水温度的变化会增加飓风的频率。 |
| with increasing frequency (=more often) Accidents occur here with increasing frequency. 更加频繁地 |
| | 1a | the number of instances of something （某种情况发生的）次数 | | +of We hope this treatment will reduce the frequency of heart disease. 我们希望这种治疗会减少心脏病的发病率。 | | high/low frequency Words with higher frequency are likely to have more complex behaviour. 使用频率更高的词汇可能具有更加复杂的变化。 | |
| | 1b | used for saying that something happens a lot 频繁 | | We became suspicious of the frequency and size of his bank withdrawals. 我们对他从银行取款的次数之多、数额之大产生了怀疑。 | |
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| 2 | C/U science the rate at which a sound wave , light wave , or radio wave vibrates (= moves up and down) （声波、光波或无线电波的）频率 |
| a frequency of 7.5 MHz 7.5兆赫的频率 |
| | 2a | the wavelength on which a radio programme is broadcast （广播节目播放的）波长 | |
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