exertion
//ɪɡˈzɜːʃən//
Noun
exertionSingular
exertionsPlural
1
Physical or mental effort, especially when strenuous or demanding.
After hours of physical exertion, she finally reached the mountain summit.
2
The act of applying force, influence, or a quality to achieve something.
The exertion of political pressure led to changes in the policy.