power; might; authority; influence
spirits; vigor; vigour; energy; boldness
祭りで威勢よく神輿を担いだ。
They carried the portable shrine with great gusto at the festival.
威勢のいい掛け声が市場に響いた。
Spirited shouts echoed through the marketplace.
彼の威勢は年をとっても衰えない。
His vigor does not wane even as he ages.