active strength of body or mind
"After her morning run, she felt a renewed vigor that made tackling her long workday effortless."
an imaginative lively style (especially style of writing)
"his writing conveys great energy"
"a remarkable muscularity of style"
Alternative form of vigour
"The spelling varies by region, so I prefer to use "vigour" in British contexts and "vigor" as its American alternative form when writing for a US audience."