Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
vigour is a noun meaning "forceful exertion". It carries 3 recorded senses.
forceful exertion
“he plays tennis with great energy”
“he's full of zip”
active strength of body or mind
an imaginative lively style (especially style of writing)
“his writing conveys great energy”
“a remarkable muscularity of style”
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for vigour come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.