vicissitude.noun
the quality or state of being changeable; alternating change; a favorable or unfavorable event or situation that occurs by chance; a fluctuation of state or condition (the vicissitudes of daily life); succession; difficulty; mutability – natural change or mutation visible in nature or in human affairs; difficulty or hardship attendant on a way of life, a career, or a course of action and usually beyond one's control

virtue.noun
moral excellence and righteousness; conformity to a standard of right; goodness; an example or kind of moral excellence (the virtue of patience); chastity, especially in a girl or woman; a particularly.efficacious, good, or beneficial quality; effective force or power (believed in the virtue of prayer)

virtuous.adjective
having or showing virtue, especially moral excellence (led a virtuous life); possessing or characterized by chastity; pure (a virtuous woman; moral
virtuously.adverb
virtuousness.noun

virtual.adjective
existing in the mind and affecting the imagination, yet generally beyond the range of common experience (virtual reality; TV provided a virtual trip to Fiji; we haven't seen him for so long he is virtually unknown); close to actual (the virtual extinction of the buffalo); paranormal; as existing or resulting in essence or effect though not formally recognized or admitted (virtual reality {this present illusory world})
virtually.adverb
virtuality.noun

by virtue of.or.in virtue of.idiom
on the grounds or basis of; by reason of (well off by virtue of a large inheritance)

vouch, vouched, vouching, vouches.verbs
intransitive verb use.to give personal assurances; give a guarantee (vouch for an old friend's trustworthiness based on one's knowledge and experience with his character)
transitive verb use.to substantiate by supplying evidence; prove; to assert; declare
vouch.noun

vouchsafe.transitive verb
inflected form(s).vouchsafed; vouchsafing
to grant or furnish often in a gracious or condescending manner; to give by way of reply (refused to vouchsafe an explanation); to grant as a privilege or special favor 
vouchsafement.noun
synonyms.grant

vindictive.adjective
revengeful in spirit; inclined to vengeance

vindicate, vindicated, vindicating, vindicates.transitive verbs
to clear of accusation, blame, suspicion, or doubt; to provide justification or support for; to justify or prove the worth of, especially in light of later developments; to defend, maintain, or insist on the recognition of (one's rights, for example); to exact revenge for; avenge
vindicator.noun

vituperate.transitive verb
to speak abusively to or about; berate
vituperation, vituperativeness, vituperator.nouns
vituperative.adjective
vituperatively.adverb

vehement.adjective
intense in feelings or thoughts; hot; characterized by forcefulness of expression or intensity of emotion or conviction; fervid.(a vehement denial); intense; marked by or full of vigor or energy; strong (a vehement storm)
vehemence, vehemency.nouns
vehemently.adverb

vex, vexed, vexing, vexes.transitive verbs
to disturb, irritate, bother, annoy, distress or afflict as with petty importunities; to cause perplexity in; puzzle
vexedly, vexingly.adverbs
vexer.noun
vexedly.adverb
vexer.noun

vexation.noun
something that vexes, cause annoyance or distress
vexatious.adjective
characterized by or causing vexation; annoying, troublesome, etc.
synonym.gall

vague, vaguer, vaguest.adjectives
ot clearly expressed; inexplicit.; not thinking or expressing oneself clearly; lacking definite shape, form, or character; indistinct (saw a vague outline of a building through the fog; not clear in meaning or application; ambiguous; indistinctly felt, perceived, understood, or recalled; hazy (a vague uneasiness; a vague purpose presented to the nation as justification for negative action)
vaguely.adverb
vagueness.noun

vanquish, vanquished, vanquishing, vanquishes.transitive verbs
to conquer or defeat in battle; force into submission; to overcome or subdue; suppress; subjugate; conquer
vanquishable.adjective
vanquisher, vanquishment.nouns

verbalism.noun
words only, without any real meaning

verbalist.noun
a person who fixes his attention on mere words and not facts

verbiage.noun
an excess of words beyond those needed to express concisely what is meant; wordiness

vertebra.noun;.plural.vertebrae or vertebras
any of the bones or cartilaginous segments forming the spinal column

vertebrates.adjective
any of a large division of animals having a spinal column or backbone of bone or cartilage (gristle; tough elastic, whitish animal tissue)
compare invertebrates

vigor or vigour.noun
active or healthy growth; vitality

vigorous.adjective
strong, energetic, and active in mind or body; robust; healthy; marked by or done with force and energy; active; done with vigor and vitality
vigorously.adverb
vigorousness.noun

vesicle.noun
a small membranous cavity, sac or cyst

vacule
a space within the cytoplasm-of a living cell that is filled – with air, a liquid, food particles, etc. Vacules receive spent proteins by way of the secretory vesciles. They are the cell's garbage dump.

vascular.adjective
the system of veins for conveying blood or lymph; of or having vessels or ducts

vis-à-vis.adjective-and.adverb
face to face with (a carriage with facing seats); opposite to; in comparison with; in relation to

valid.adjective
well grounded on principles or evidence; able to withstand criticism or objection; producing the desired results; efficacious (valid methods); containing premises from which the conclusion may logically be derived-(a valid argument); correctly inferred or deduced from a premise (a valid conclusion)
validity or validness.noun
validly.adverb

verve.noun
energy and enthusiasm in the expression of ideas, especially in artistic performance or composition (the play lacks verve); vitality; liveliness; vigor

vast, vaster, vastest.adjective
very great in size, number, amount, quantity, area or extent; immense; very great in; very great in degree or intensity; enormous
vast, vastness.noun
an immense space
vastly.adverb