1. To give forth a low, moaning sound in breathing; to utter a groan, as in pain, in sorrow, or in derision; to moan. For we . . . do groan, being burdened. 2 Cor. v. 4. He heard the groaning of the oak. Sir W. Scott. 2. To strive after earnestly, as with groans. Nothing but holy, pure, and clear, Or that which g...