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shrill

1 shrill /ˈʃrɪl/ adjective
shriller; shrillest
1 shrill
/ˈʃrɪl/
adjective
shriller; shrillest
Britannica Dictionary definition of SHRILL
[also more shrill; most shrill]
: having a very loud, high-pitched sound
: loud and difficult to ignore but often unreasonable

— shrillness

noun [noncount]
2 shrill /ˈʃrɪl/ verb
shrills; shrilled; shrilling
2 shrill
/ˈʃrɪl/
verb
shrills; shrilled; shrilling
Britannica Dictionary definition of SHRILL
[no object] : to make a very loud, high-pitched sound
[+ object] : to say (something) in a very loud, high-pitched voice