17-letter words containing o, v, i, f
- pro forma invoice — an invoice issued before an order is placed or before the goods are delivered giving all the details and the cost of the goods
- protective tariff — a tariff levied on imports to protect the domestic economy rather than to raise revenue
- reflexive pronoun — A reflexive pronoun is a pronoun such as 'myself' which refers back to the subject of a sentence or clause. For example, in the sentence 'He made himself a cup of tea', the reflexive pronoun 'himself' refers back to 'he'.
- self-conservation — the act of conserving; prevention of injury, decay, waste, or loss; preservation: conservation of wildlife; conservation of human rights.
- self-preservation — preservation of oneself from harm or destruction.
- sinus of valsalva — any of the pouches of the aorta and the pulmonary artery opposite the flaps of the semilunar valves into which blood returning to the heart flows, closing the valves.
- softvelocity inc. — (company) The distributors of the Clarion family of application development systems.
- the tet offensive — an offensive launched in January–February 1968 by the North Vietnamese Army and the Vietcong. Coinciding with the first day of the Tet, it was a surprise attack on South Vietnamese cities, including Saigon
- traffic diversion — a special route arranged for traffic to follow when the normal route cannot be used
- traffic violation — driving offence
- vanilla-flavoured — having been flavoured with vanilla extract or essence
- veiltail goldfish — an artificially bred, indoor variety of goldfish, usually golden or calico and of a spheroid shape, having a fully divided, drooping tail fin exceeding the body in length.
- velocity of money — the frequency with which a single unit of currency or the total money supply turns over within the economy in a given year.
- ventilation shaft — a shaft in a mine, tunnel, or building used for providing ventilation or fresh air
- vermiform process — vermiform appendix.
- vibrofluidization — Vibrofluidization is when vibration is used to make particles move in a fluidized bed.
- videoconferencing — the holding of videoconferences.
- waiver of premium — a provision in a policy establishing specific conditions under which the policy will be kept in force without the policyholder's being required to continue to pay premiums.
- wings of the dove — a novel (1902) by Henry James.
- zone of avoidance — the area of the sky in the plane of the Milky Way where interstellar dust obscures visible light so that no distant galaxies can be observed.