n. persistent determination

n. a delay in enforcing rights or claims or privileges; refraining from acting; "his forbearance to reply was alarming"

n. a quality of spirit that enables you to face danger or pain without showing fear

n. the courage to carry on; "he kept fighting on pure spunk"; "you haven't got the heart for baseball"

n. the trait of being resolute; "his resoluteness carried him through the battle"; "it was his unshakeable resolution to finish the work"

n. resolute adherence to your own ideas or desires

n. steadfast resolution

n. strength of mind that enables one to endure adversity with courage

n. the part of a network that connects other networks together; "the backbone is the part of a communication network that carries the heaviest traffic"

n. the power to withstand hardship or stress; "the marathon tests a runner's endurance"

n. enduring strength and energy

n. permanence by virtue of the power to resist stress or force; "they advertised the durability of their products"

n. the property of a continuous and connected period of time

n. (physics) opposition to magnetic flux (analogous to electric resistance)