1. the number of times sth happens or the fact that sth happens often.
- The increasing frequency of robberies are making the residents worried.
- Complaints about the frequency of water disruptions rose in the last six months.
2. the number of times a wave, especially a light, sound or radio wave is produced in a particular period of time.
- Humans cannot hear high frequency sounds the way dogs can.
3. common occurrence.
- Houses in the Klang Valley are sold with far greater frequency than in other parts of the country.
- It rains with greater frequency during the monsoon season.