Definition of vigour:
nada, wholeheartedness, nil, free energy, nix, zing, push, zip, vigor, zero, pizzaz, muscularity, Strength, goose egg, cypher, heartiness, zilch, pizzazz, postcode, sinew, slide fastener, zippo, cipher, null, naught, muscle, vitality, brawn, power, aught, oomph, brawniness, vim, zipper, energy, postal code, heftiness, nothing, dynamism, zip fastener, get-up-and-go.
- "Charlie to the Rescue", R.M. Ballantyne.
- "Routledge's Manual of Etiquette", George Routledge.
- "Memoir and Letters of Francis W. Newman", Giberne Sieveking.