(v) release, as from one's grip, Syn. let go, release, relinquish, Ant. hold, Example:Let go of the door handle, please!; relinquish your grip on the rope--you won't fall
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
. (Chem.) An artificial red dye from which the Congo group received its name. It is also widely used either in aqueous solution or as test paper ( Congo paper) for the detection of free acid, which turns it blue. [ Webster 1913 Suppl. ]