frequency
gb/fɹˈikwənsi/ us/fɹˈikwənsi/
B1
Английски
~ 2500
Значения
0 значения
Съществително
B1
quantity
1
Rate of occurrence over time
How often something happens during a certain time.
Модел на употреба:
the frequency of [something]
Честа грешка:
Learners sometimes confuse 'frequency' with 'speed'. Frequency is how often something happens, not how fast it happens.
Синоними
rate (More general term for speed or pace of occurrence; not limited to repeated events.)
|
occurrence rate (Specifically refers to how often something happens, similar to 'frequency' but more formal.)
Антоними
rarity (Refers to something happening very seldom, opposite of high frequency.)
Колокации
high frequency
|low frequency
|frequency range
|frequency band
|frequency measurement
Теми
science
|statistics
|daily life
|core_vocabulary
Примери
- The frequency of buses has increased during rush hour.
- Doctors recommend regular exercise at a frequency of three times a week.
- This radio works on a frequency of 101.4 FM.
- The frequency of earthquakes in this region has risen.
- We measured the frequency of her visits to the library.
Примери за учащи
- The frequency of the trains is every 10 minutes.
- I listen to music on this radio frequency.
- The frequency of rain is high in April.
- We check the machine’s frequency every week.
Съществително
technical
B2
quantity
2
Wave cycles per second
How many times a wave repeats in one second, measured in hertz.
Модел на употреба:
[wave/signal] frequency
Честа грешка:
Learners may confuse 'frequency' with 'volume' when talking about sound. Frequency is how fast the waves repeat, volume is how loud it is.
Синоними
pitch (In sound context, refers to perceived highness or lowness, related to frequency but subjective.)
Антоними
wavelength (Inverse physical property related to frequency; higher frequency means shorter wavelength.)
Колокации
radio frequency
|signal frequency
|ultrasonic frequency
|sound frequency
Теми
science
|technology
Примери
- The radio operates on a frequency of 98.3 MHz.
- Bats use high-frequency sounds to navigate.
- This device can detect frequencies up to 20 kHz.
- We adjusted the frequency to get a clearer signal.
Примери за учащи
- The TV works on this signal frequency.
- We measure the sound's frequency in hertz.
- A high frequency sound can be hard to hear.
- The radio changes to a different frequency.
Граматика
Речникова форма
frequency
IPA
GB/fɹˈikwənsi/
US/fɹˈikwənsi/
Срички и ударение
fre - quency (2 срички)
Stress on 1st syllable (fre)
Форми на думата
Noun
- Base: frequency
- Plural: frequencies, frequency
Семейство думи
Forms
frequencies
noun
Core family
frequent
adjective B1
frequently
adverb A2
Negative and opposite forms
infrequent
adjective
infrequently
adverb
Изрази
high frequency
1/hˈaɪ fɹˈikwənsi/
fixed phrase
Happening often or fast cycles
Happening very often, or with many cycles per second (in science).
Примери
- High-frequency trading happens in milliseconds.
- This machine works at a high frequency.
low frequency
1/lˈoʊ fɹˈikwənsi/
fixed phrase
Happening rarely or slow cycles
Happening not often, or with few cycles per second (in science).
Примери
- Low-frequency sounds can travel long distances.
- Low-frequency events are harder to study.
radio frequency
1/ɹˈeɪdioʊ fɹˈikwənsi/
fixed phrase
technical
Electromagnetic range for communication
A range of electromagnetic waves used for sending and receiving signals like radio or TV.
Примери
- The police use a special radio frequency for communication.
- You need to tune to the right radio frequency.