Here are the possible solutions for cicadas' sounds clue
Answer
Clue
Relevancy
chirrs
Clue
Cicadas' sounds
Definition
CHIRR, to chirp like a cricket, also CHIRRE
cycles
Clue
Cicadas have them
Definition
CYCLE, to ride a bicycle
immerselocusts
Clue
Put cicadas under water?
insects
Clue
Cockroaches and cicadas, e.g.
Definition
INSECT, a word loosely used for a small invertebrate creature, esp. one with a body divided into sections; in zoological terms, a member of the Insecta
diphthongs
Clue
Sounds of "sounds" and "voices"
Definition
DIPHTHONG, a union of two vowels pronounced in one syllable
