Verb
1. very high and loud; piercing
a shrill whistle
Test
1 / 5
The patient is complaining of pain in the abdomen.
2 / 5
a frame with rows of sliding beads, used for doing arithmetic
3 / 5
He's very learned but rather absent-minded.
4 / 5
I didn't accept his invitation.
5 / 5
TV is an ( ) for television.
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