As verbs the difference between churr and chirr
is that churr is while chirr is to make a prolonged trilling sound of an insect (eg a grasshopper, a cicada).
As a noun chirr is
the trilled sound made by an insect.
chirr
English
Verb
(
en verb)
To make a prolonged trilling sound of an insect (e.g. a grasshopper, a cicada).
Noun
(
en noun)
The trilled sound made by an insect.