resolutionresolveresolutenesswill powerstrength of willstrength of charactersingle-mindednesssense of purposefirmness of purposefixity of purposepurposefulnessintentnessdecisiondecidednesssteadfastnessstaunchnessperseverancepersistenceindefatigabilitytenacitytenaciousnessstaying powerstrong-mindednessbackbonethe bulldog spiritpertinacitypertinaciousnessstubbornnessdoggednessobstinacyobduratenessobduracyinflexibilityspiritednessbravenessbraveryboldnesscouragecourageousnesspluckpluckinessstout-heartednessDunkirk spiritsitzfleischarchaic：intensioninformal：gutsspunkgritstickabilitystick-to-it-ivenessrare：perseveration
2
the process of establishing something exactly by calculation or research.
