American silversmith remembered for his midnight ride (celebrated in a poem by Longfellow) to warn the colonists in Lexington and Concord that British troops were coming (1735-1818)
place in a place where something cannot be removed or someone cannot escape; "The parents locked her daughter up for the weekend"; "She locked her jewels in the safe"
close with or as if with a tight seal; "This vacuum pack locks in the flavor!"