Verb
1. very high and loud; piercing
a shrill whistle
Test
1 / 5
I accepted her story as true.
2 / 5
The ostrich has lost the ability to fly.
3 / 5
TV is an ( ) for television.
4 / 5
a frame with rows of sliding beads, used for doing arithmetic
5 / 5
They abandoned their country after the civil war.
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