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TOEFL IELTS BNC: 1915 COCA: 2386

constant
1 constant /ˈkɑːnstənt/ adjective
1 constant
/ˈkɑːnstənt/
adjective
Learner's definition of CONSTANT
1 
: happening all the time or very often over a period of time不断的；连续发生的；经常发生的
— opposite inconstant
2 
[more constant; most constant] : staying the same : not changing稳定的；不变的；恒定的
— opposite inconstant
3 
formal + literary : always loyal忠实的；忠诚的；忠贞不渝的
— opposite inconstant

— constantly

adverb
2 constant /ˈkɑːnstənt/ noun
plural constants
2 constant
/ˈkɑːnstənt/
noun
plural constants
Learner's definition of CONSTANT
[count]
1 
: something that stays the same : something that does not change不变的事物；永恒的事物
2 
technical : a quantity or number whose value does not change常量；常数；恒量
TOEFL IELTS BNC: 1915 COCA: 2386

constant

1 of 2

adjective

con·​stant ˈkän(t)-stənt How to pronounce constant (audio)
1
: marked by firm steadfast resolution or faithfulness : exhibiting constancy of mind or attachment
a constant friend
2
: invariable, uniform
a constant flow
should be stored at a constant temperature
3
: continually occurring or recurring : regular
a constant annoyance
suffers from constant headaches

constant

2 of 2

noun

: something invariable or unchanging: such as
a
: a number that has a fixed value in a given situation or universally or that is characteristic of some substance or instrument
b
: a number that is assumed not to change value in a given mathematical discussion
c
: a term in logic with a fixed designation
d
: something or someone that is reliably present or available
My parents put in me in piano lessons when I was really young, so music has always been a constant in my life. Mélat
He's my constant for when I seek guidance both on a professional and personal front. Gautam Mehra

Synonyms

Adjective

Choose the Right Synonym for constant

faithful, loyal, constant, staunch, steadfast, resolute mean firm in adherence to whatever one owes allegiance.

faithful implies unswerving adherence to a person or thing or to the oath or promise by which a tie was contracted.

faithful to her promise

loyal implies a firm resistance to any temptation to desert or betray.

remained loyal to the czar

constant stresses continuing firmness of emotional attachment without necessarily implying strict obedience to promises or vows.

constant friends

staunch suggests fortitude and resolution in adherence and imperviousness to influences that would weaken it.

a staunch defender of free speech

steadfast implies a steady and unwavering course in love, allegiance, or conviction.

steadfast in their support

resolute implies firm determination to adhere to a cause or purpose.

a resolute ally

continual, continuous, constant, incessant, perpetual, perennial mean characterized by continued occurrence or recurrence.

continual often implies a close prolonged succession or recurrence.

continual showers the whole weekend

continuous usually implies an uninterrupted flow or spatial extension.

football's oldest continuous rivalry

constant implies uniform or persistent occurrence or recurrence.

lived in constant pain

incessant implies ceaseless or uninterrupted activity.

annoyed by the incessant quarreling

perpetual suggests unfailing repetition or lasting duration.

a land of perpetual snowfall

perennial implies enduring existence often through constant renewal.

a perennial source of controversy

Example Sentences

Adjective He suffers from constant headaches. Her constant chatter was a nuisance. The house is in constant need of repairs. The scar serves as a constant reminder of the accident. a problem demanding constant attention The equipment should be stored at a constant temperature. He kept the car's speed constant. She has struggled to maintain a constant weight. They remained constant friends throughout their lives. Noun Her job was the one constant in her life. See More
Recent Examples on the Web
Adjective
For whatever reason, Las Vegas has been a constant presence on the Indianapolis schedule in the Frank Reich tenure, and the road team has won each of the matchups between the teams. Nate Atkins, The Indianapolis Star, 7 Sep. 2022 Young Frances was a constant presence at the center, with father and son (and sometimes Frances’s twin brother, Franklin) sleeping on folding tables in a makeshift room after Dad finished work late at night. Jason Gay, WSJ, 6 Sep. 2022 Have the Democrats turned things around this midterm cycle — thanks to the Supreme Court's decision to overturn Roe v. Wade and former President Donald Trump’s constant presence in the news. Chuck Todd, NBC News, 31 Aug. 2022 American Special Forces teams first arrived in Niger in 2014, and teams have worked heel and toe to keep a constant presence, training and advising the EFON. Kevin Maurer, Rolling Stone, 28 Aug. 2022 In the meantime, the football team will be sporting commemorative stickers on their helmets this season to remember Morrissey’s quiet, constant presence. Kinsey Crowley, Chicago Tribune, 23 Aug. 2022 For the families left behind, their absence is a constant presence. Martin Kuz, The Christian Science Monitor, 23 Aug. 2022 Throughout the years, Prince Edward is a constant presence at Wimbledon, and has been part of some incredible tennis history, including the first time Roger Federer won the championships. Emily Burack, Town & Country, 14 Aug. 2022 Aaron was a constant presence at SPIN from 1991 to 2011 and mentored scores of up-and-coming music journalists along the way. Jonathan Cohen, SPIN, 5 Aug. 2022
Noun
But one constant that does emerge is how much the story varied from country to country. Andrew Stuttaford, WSJ, 5 Aug. 2022 Although there were significant changes to the cast and creative team, one constant has been production designer Tony Cisek. Thomas Floyd, Washington Post, 12 July 2022 Once a constant and a comfort, the diary keeping has turned as strange as the upside-down world around him. Laura Kingstaff Writer, Los Angeles Times, 5 Aug. 2022 My presentation over those years has changed drastically in every direction, but the feeling of my ever-expansive gender hasn’t: The one constant is its ability to really surprise me. Tom Rasmussen, Vogue, 5 Aug. 2022 Far too many in cities across the state, across the nation, live with gunfire as a near constant, like cicadas on Southern summer nights. Roy S. Johnson | Rjohnson@al.com, al, 3 Aug. 2022 The lesson also is that a team can play poorly or go on a hot streak, attendance can ebb and come back, but food is a constant. Marc Bona, cleveland, 25 July 2022 In a 12-month stretch where nearly the entire Reds outfield changed, Naquin was the constant. Charlie Goldsmith, The Enquirer, 4 Apr. 2022 In the quixotic journey to find myself, writing was the constant. Caitlin Raux Gunther, Bon Appétit, 23 Feb. 2022 See More

Word History

Etymology

Adjective and Noun

Middle English, from Middle French, from Latin constant-, constans, from present participle of constare to stand firm, be consistent, from com- + stare to stand — more at stand

First Known Use

Adjective

14th century, in the meaning defined at sense 1

Noun

1832, in the meaning defined above

Time Traveler
The first known use of constant was in the 14th century

Phrases Containing constant

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TOEFL IELTS BNC: 1915 COCA: 2386
constant

adjective

VERBS | ADVERB | PREPOSITION VERBS➤be不變；恆常▸➤remain, stay保持不變◇The level of unemployment remains fairly constant at around 10%.失業率一直維持在 10% 左右，比較穩定。➤hold sth (technical術語) , keep sth使⋯保持恆定；使⋯保持不變◇All variables except one must be held constant.除了一個變量以外，其他所有變量必須保持恆定。◇The temperature must be kept constant.溫度必須保持不變。ADVERB➤fairly, reasonably, relatively比較／還算／相對穩定▸➤approximately, essentially, more or less, roughly大致／基本／或多或少／大體上穩定▸➤almost, nearly, virtually幾乎不變；實際上不變▸➤remarkably異常穩定▸➤absolutely絕對穩定PREPOSITION➤across在⋯範圍內不變◇These electrical properties are virtually constant across a wide range of temperatures.這些電性能在很大溫度範圍內幾乎保持不變。➤over在⋯期間不變◇Prices have remained constant over this period.價格在這一時期保持不變。

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