noun

• (Roman Catholicism) A vessel for holding holy water.
• (dated) A liquid measure and dry measure; especially, a liquid measure in Belgium and Holland, corresponding to the hectolitre of the metric system, which contains 22.01 imperial gallons, or 26.4 standard gallons in the United States.

verb

• (transitive) To put into a vat.
• (transitive) To blend (wines or spirits) in a vat; figuratively, to mix or blend elements as if with wines or spirits.
  "He was thinking of the grape arbor in Kingston, of summer twilight and the murmur of voices darkening into silence as he approached, who meant them, her, no harm; who meant her less than harm, good God; darkening into the pale whisper of her white dress, of the delicate and urgent mammalian whisper of that curious small flesh which he had not begot and in which appeared to be vatted delicately some seething sympathy with the blossoming grape."

noun

• (taxation) Initialism of value added tax.
  "And neither party is up for imposing a VAT in place of the current income tax system."