Hum
Hum noun - A monotonous sound like that of an insect in motion.
Usage example: we heard the hum of an outboard motor and a few minutes later the small craft came into sight
Hiss
Hiss verb - To make a sound like that of stretching out the speech sound \s\.
Usage example: the frightened kitten hissed at us when we tried to pick it up
Hum and hiss are semantically related in sound topic. Sometimes you can use "Hum" instead the word "Hiss" as a verb or a noun, if it concerns topics such as make buzzing sound.
Mutual synonyms
How words are described
Cite this Source
Hiss and Hum. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/hum/hiss
Hum & Hiss. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/hum/hiss>.
Hiss or Hum. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/hum/hiss.
Google Ngram Viewer shows how "hum" and "hiss" have occurred on timeline