frequency
noun [ C or U ]
uk/ˈfriːkwənsi/ usthe number of times something happens within a particular period, or the fact of something happening often or a large number of times:
Once a week is a good frequency to back up all the data.
the frequency of sth Cost-conscious retailers are reducing the frequency of cash collections.
We can surely do better in reducing the frequency and intensity of emerging market financial crises.
with greater/increasing frequency Skirmishes between privacy advocates and those collecting information are occurring with increasing frequency.
Some trusts limit the frequency with which a loan can be modified.
COMMUNICATIONS
the number of times that a wave, especially a sound or radio wave, is produced within a particular period, especially one second:
The transmitter sends out a pulse of sound at a frequency of 6 kilohertz.