Idiom of the Day
keep (someone or something) still/quiet
to make someone or something silent or less noisy
The mother had a hard time keeping her child still in the airplane.
Fact
Intermediate range ballistic missile (irbm)
It is of three types, viz, air to air, surface to air, and air to surface. Air to air guided missile, launched from an aircraft is employed to hit target in the battlefield.
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