verb (used with object)
to unfasten or undo, as a bond or fetter.
to make less tight; slacken or relax: to loosen one's grasp.
to make less firmly fixed in place: to loosen a tooth.
to let loose or set
free from bonds, restraint, or constraint.
to make less close or compact in structure or arrangement.
to make less dense or coherent: to loosen the soil in a garden.
to relax in strictness or severity, as restraint or discipline: to loosen restrictions on trade.
to relieve (the bowels) of their constipated condition.
verb (used without object)
to become loose or looser (sometimes followed by up
): His hold loosened. Your shoes will loosen up with wear.
Origin: 1350–1400; Middle English loosnen. Related forms