Adjective
1. having a sharp taste
Lemons are sour.
Test
1 / 5
What are you talking about?
2 / 5
He had an abnormal interest in death.
3 / 5
a frame with rows of sliding beads, used for doing arithmetic
4 / 5
Above all, be punctual.
5 / 5
I didn't accept his invitation.
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