Low frequencies refer to the range of sounds that have a low pitch, typically measured in Hertz. Some synonyms for the word "low frequencies" include bass, deep tones, sub-bass, infrasound, and rumble. These sounds are often associated with music genres like hip-hop, EDM, and dubstep, where the heavy basslines create a powerful and dynamic listening experience. Additionally, these low-frequency sounds have a range of practical applications, from sonar and seismic monitoring to medical testing and industrial equipment. Whether you are a music lover or a scientist, there are many terms that can be used to describe the rich sonic texture of low-frequency sounds.