英语词汇词典 | 单词含义、定义和示例
An unoccupied position or available space.
"There is a job vacancy at the bank."
empty, unoccupied, or not being used
"The apartment has been vacant for three months."
to leave or give up a place, seat, or position
"They had to vacate the apartment by the end of the month."
an extended period of leisure and recreation, especially one spent away from home or traveling
"We went on vacation to the beach last summer."
to give a vaccine to protect against a disease
"Children are usually vaccinated before starting school."
the process of giving a vaccine to a person or animal to protect them against a disease
"Children receive vaccination against measles at an early age."
a substance used to stimulate the body's immune response against diseases
"Children are given the polio vaccine to prevent infection."
an electrical appliance that uses suction to remove dirt and dust from carpets and floors
"She used the vacuum cleaner to clean the living room carpet."
to waver between different opinions or actions; be indecisive
"He vacillated between studying law and becoming a writer."
The inability to decide between different opinions or actions; indecisiveness.
"His constant vacillation frustrated his colleagues during the meeting."
Having or showing a lack of thought or intelligence; mindless.
"She gave a vacuous smile during the serious discussion."
A space entirely devoid of matter; an absence of atmosphere or content.
"The scientist created a vacuum chamber for the experiment."
A person who wanders from place to place without a home or job.
"The old vagabond lived on the streets of the city."
An unexpected and inexplicable change in a situation or someone's behavior.
"The vagaries of the weather made planning difficult."
A person without a settled home or regular work who wanders from place to place.
"The police offered shelter to a vagrant sleeping on the street."
Not clearly expressed, known, described, or decided.
"Her explanation was so vague that nobody understood the plan."
Having an excessively high opinion of one's appearance, abilities, or worth.
"He is too vain to admit his mistakes."
Excessively proud of oneself or one’s achievements; boastful.
"The vainglorious leader boasted about his minor achievements."
Excessive vanity or boastfulness about one's achievements.
"His speech was filled with vainglory and self-praise."
A decorative drapery hung across the top of a window or bed.
"She chose a floral valance to match the curtains in her bedroom."
The act of saying farewell; a formal goodbye.
"The professor gave a touching valediction at his retirement ceremony."
The student with the highest academic achievements in a graduating class, often chosen to give the farewell speech.
"She was honored as the valedictorian of her class."
Serving as a farewell or parting; relating to a valediction.
"He delivered a valedictory speech at the conference."
A person who is unduly anxious about their health or constantly concerned with minor ailments.
"He was regarded as a valetudinarian, always worrying about his health."
Showing courage, determination, and bravery.
"The firefighters made a valiant effort to save the building."
To check or prove the accuracy, truth, or legality of something.
"The scientist worked hard to validate the experiment's results."
the quality of being logically or factually sound; legal acceptability
"The lawyer questioned the validity of the contract."
in a legally, logically, or officially acceptable manner
"The contract was validly signed by both parties."
a low area of land between hills or mountains, typically with a river or stream flowing through it
"The valley was covered in lush green grass and flowers."
Great courage in the face of danger, especially in battle.
"The soldier was honored for his valor during the war."
showing great courage and bravery
"The valorous soldier led his troop into battle without hesitation."
worth a great deal of money or importance
"The diamond ring is very valuable."
the process of deciding how much money something is worth; an estimated value
"The property valuation came in higher than expected."
the importance, worth, or usefulness of something
"The value of education cannot be overstated."
A business or marketing statement that summarizes why a consumer should buy a product or use a service.
"A strong value proposition attracts more buyers."
Education that emphasizes moral principles and ethical values.
"Value-based education shapes moral character."
having no worth, importance, or usefulness
"The old broken phone was considered valueless."
a mythical creature that sucks blood from the living; metaphorically, a person who exploits others
"In folklore, a vampire rises at night to drink human blood."
the forefront of an action, movement, or military force
"The company is at the vanguard of technological innovation."
to disappear suddenly and completely
"The magician made the rabbit vanish into thin air."
excessive pride in one's appearance, achievements, or possessions
"His vanity made him buy an expensive car just to impress others."
to defeat thoroughly, especially in battle or competition
"The army vanquished its enemies with superior strategy."
a position or situation that gives an advantage or a good view
"From this vantage, we could see the entire valley."
lacking liveliness, flavor, or interest; dull and uninspired
"The lecture was so vapid that half the audience fell asleep."
to turn into vapor or gas
"The heat of the sun can vaporize water from the surface."
a device that turns a liquid into vapor, often for inhalation
"She used a vaporizer to ease her cough."
consisting of vapor; vague or insubstantial
"The morning air was filled with vaporous mist."
