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40 words

calamitous
GeneralC1
Meaning: Causing great damage or distress.
Part of speech: adjective
Example: The calamitous event left the town in ruins.
Category: General
Synonyms:
  • disastrous
  • catastrophic
Antonyms:
  • fortunate
  • beneficial
calamity
GeneralC1
Meaning: An event causing great damage or distress.
Part of speech: noun
Example: The earthquake was a calamity for the city.
Category: General
Synonyms:
  • disaster
  • catastrophe
Antonyms:
  • blessing
  • fortune
calciferous
ScienceC2
Meaning: Containing calcium or calcium compounds.
Part of speech: adjective
Example: The calciferous rock is rich in minerals.
Category: Science › Geology
Synonyms:
  • calcium-rich
  • mineralized
calcified
ScienceC2
Meaning: Hardened by calcium deposits.
Part of speech: adjective
Example: The calcified tissue was no longer flexible.
Category: Science › Biology
Synonyms:
  • hardened
  • stiffened
calcify
ScienceC2
Meaning: To become hardened or to turn into calcium.
Part of speech: verb
Example: The tissue may calcify over time.
Category: Science › Biology
Synonyms:
  • harden
  • solidify
calcite
ScienceB2
Meaning: A common mineral made of calcium carbonate.
Part of speech: noun
Example: Calcite is often found in limestone.
Category: Science › Geology
Synonyms:
  • mineral
  • carbonate
calcium
ScienceA2
Meaning: A chemical element important for bones and teeth.
Part of speech: noun
Example: Milk is a good source of calcium.
Category: Science › Chemistry
Synonyms:
  • mineral
  • element
calcium carbonate
ScienceB2
Meaning: A chemical compound found in rocks and shells.
Part of speech: noun
Example: Calcium carbonate is used in antacids.
Category: Science › Chemistry
Synonyms:
  • chalk
  • limestone
calculable
MathematicsC1
Meaning: Able to be calculated or estimated.
Part of speech: adjective
Example: The risks are calculable with proper analysis.
Category: Mathematics
Synonyms:
  • measurable
  • estimable
calculate
MathematicsA2
Meaning: To determine a number or amount mathematically.
Part of speech: verb
Example: You need to calculate the total cost.
Category: Mathematics
Synonyms:
  • compute
  • reckon
calculated
GeneralC1
Meaning: Done with careful thought or planning.
Part of speech: adjective
Example: His response was a calculated decision.
Category: General
Synonyms:
  • deliberate
  • intentional
Antonyms:
  • spontaneous
  • unplanned
calculating
GeneralC2
Meaning: Shrewd or scheming, often for personal gain.
Part of speech: adjective
Example: She had a calculating nature that made her successful.
Category: General
Synonyms:
  • scheming
  • manipulative
Antonyms:
  • naive
  • innocent
calculation
MathematicsA2
Meaning: The process of determining a number or amount.
Part of speech: noun
Example: The calculation took longer than expected.
Category: Mathematics
Synonyms:
  • computation
  • estimation
calculator
TechnologyA1
Meaning: A device used to perform mathematical calculations.
Part of speech: noun
Example: I used a calculator to solve the math problem.
Category: Technology › Mathematics
Synonyms:
  • adding machine
  • computing device
calculus
MathematicsC2
Meaning: A branch of mathematics dealing with rates of change.
Part of speech: noun
Example: Calculus is essential for advanced physics.
Category: Mathematics
Synonyms:
  • math
  • analysis
caldera
ScienceC2
Meaning: A large volcanic crater formed by an eruption.
Part of speech: noun
Example: The caldera was filled with water, creating a lake.
Category: Science › Geology
Synonyms:
  • crater
  • volcano
caldron
GeneralB2
Meaning: A large pot used for boiling or cooking.
Part of speech: noun
Example: The witch stirred her potion in a caldron.
Category: General
Synonyms:
  • cauldron
  • pot
Caledonian
CultureC2
Meaning: Relating to Scotland or its culture.
Part of speech: adjective
Example: The Caledonian landscape is beautiful.
Category: Culture › Geography
Synonyms:
  • Scottish
  • Celtic
calendar
GeneralA1
Meaning: A system for organizing days and months.
Part of speech: noun
Example: I marked my birthday on the calendar.
Category: General
Synonyms:
  • schedule
  • planner
calendar month
GeneralB1
Meaning: A month as defined in a calendar.
Part of speech: noun
Example: February is a calendar month with 28 days.
Category: General
Synonyms:
  • month
  • time period
calendar year
GeneralB1
Meaning: A year as defined in a calendar, typically from January to December.
Part of speech: noun
Example: The calendar year ends in December.
Category: General
Synonyms:
  • year
  • time frame
calf
AnimalsA1
Meaning: A young cow or bull.
Part of speech: noun
Example: The calf followed its mother closely.
Category: Animals › Livestock
Synonyms:
  • young cow
  • bovine
calf-length
FashionB1
Meaning: Referring to a length that reaches the calf of the leg.
Part of speech: adjective
Example: She wore a calf-length dress to the event.
Category: Fashion
Synonyms:
  • mid-calf
  • ankle-length
calfskin
FashionB2
Meaning: Leather made from the skin of a calf.
Part of speech: noun
Example: He bought a calfskin wallet.
Category: Fashion › Materials
Synonyms:
  • leather
  • hide
calibrate
TechnologyB2
Meaning: To adjust or mark a measuring instrument.
Part of speech: verb
Example: You need to calibrate the scale before use.
Category: Technology › Measurement
Synonyms:
  • adjust
  • set
calibration
TechnologyB2
Meaning: The process of adjusting a measuring instrument.
Part of speech: noun
Example: Calibration is essential for accurate results.
Category: Technology › Measurement
Synonyms:
  • adjustment
  • setting
calibre
GeneralC1
Meaning: The diameter of a gun barrel or the quality of something.
Part of speech: noun
Example: The calibre of the rifle was impressive.
Category: General
Synonyms:
  • quality
  • standard
calico
FashionB2
Meaning: A type of cotton fabric, often printed.
Part of speech: noun
Example: She bought calico fabric for her sewing project.
Category: Fashion › Materials
Synonyms:
  • cotton
  • fabric
calico cat
AnimalsB2
Meaning: A cat with a coat of three colors: white, black, and orange.
Part of speech: noun
Example: The calico cat is known for its unique coloring.
Category: Animals › Pets
Synonyms:
  • multicolored cat
  • tri-color cat
californium
ScienceC2
Meaning: A radioactive chemical element used in nuclear reactors.
Part of speech: noun
Example: Californium is used in neutron sources.
Category: Science › Chemistry
Synonyms:
  • element
  • radioactive material
caliph
PoliticsC1
Meaning: A leader in a Muslim community, regarded as a successor to Muhammad.
Part of speech: noun
Example: The caliph ruled over a vast empire.
Category: Politics › Religion
Synonyms:
  • leader
  • ruler
caliphate
PoliticsC2
Meaning: A state governed by a caliph.
Part of speech: noun
Example: The caliphate was an important part of Islamic history.
Category: Politics › Religion
Synonyms:
  • Islamic state
  • theocracy
calisthenics
SportsB2
Meaning: Exercises designed to improve physical fitness.
Part of speech: noun
Example: She does calisthenics every morning.
Category: Sports › Fitness
Synonyms:
  • exercise
  • workout
CALL
GeneralA1
Meaning: To speak to someone on the phone.
Part of speech: verb
Example: I will call you later.
Category: General
Synonyms:
  • ring
  • telephone
call
GeneralA1
Meaning: To speak to someone on the phone.
Part of speech: verb
Example: I will call you later.
Category: General
Synonyms:
  • ring
  • telephone
call back
GeneralA2
Meaning: To return a phone call.
Part of speech: verb
Example: I will call you back after the meeting.
Category: General
Synonyms:
  • return a call
  • get back to
call box
TechnologyB2
Meaning: A public telephone booth.
Part of speech: noun
Example: He used the call box to make a phone call.
Category: Technology › Communication
Synonyms:
  • phone booth
  • telephone box
call centre
BusinessB2
Meaning: An office where customer service calls are handled.
Part of speech: noun
Example: She works at a call centre.
Category: Business › Customer Service
Synonyms:
  • customer service center
  • support center
call for
GeneralB1
Meaning: To require or demand something.
Part of speech: verb
Example: This situation calls for immediate action.
Category: General
Synonyms:
  • demand
  • require
call girl
GeneralC2
Meaning: A woman who is paid to provide companionship or sexual services.
Part of speech: noun
Example: The movie depicted the life of a call girl.
Category: General
Synonyms:
  • escort
  • prostitute

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