xertion exertion ɪɡˈzəːʃn/ noun: exertion; plural noun: exertions definition: physical or mental effort. synonyms: effort, toil, endeavour, hard work, labour, industry, blood, sweat & tears That’s us: happy to exert ourselves for the greater good and that includes making your business a success. Better still, we’re that uncanny combination of words AND numbers. A partnership of contradictions, but you know something? It works.