6000 Most Used Vocabulary

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Lesson 20 Details

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challenge (noun/verb) vocabulary illustration

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Lesson 20 - Mask Toggle

Emoji	Word	Images	Past	Past Participle	Third Person Singular	Gerund	Meaning	Example Sentence	Example Expression	Example Expression Meaning	Synonyms	Antonyms	Collocations

#908 🎯 ••••••	center /ˈsɛntər/ noun ••••••	••••••	- ••••••	- ••••••	- ••••••	- ••••••	The middle point or part of something; a place where a particular activity is concentrated. ••••••	The park is located in the center of the city. ••••••	the center of attention ••••••	the person or thing that everyone is paying attention to ••••••	middle, hub, core, heart, focus ••••••	edge, side, periphery ••••••	city center, shopping center, cultural center, attention center ••••••
#909 📍 ••••••	central /ˈsɛntrəl/ adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	Situated in the middle; of the greatest importance. ••••••	Water is central to human survival. ••••••	play a central role ••••••	to be very important in something ••••••	main, key, vital, core, essential ••••••	minor, peripheral, unimportant ••••••	central idea, central role, central authority, central location ••••••
#910 📆 ••••••	century /ˈsɛnʧəri/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	A period of one hundred years. ••••••	The 20th century saw significant technological progress. ••••••	turn of the century ••••••	the beginning of a new century ••••••	hundred years, era, age, period ••••••	moment, instant, second ••••••	century old, 21st century, century mark, past century ••••••
#911 🎉 ••••••	ceremony /ˈsɛrəˌmoʊni/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	A formal event or occasion, often with rituals and traditions. ••••••	The graduation ceremony was held in the university hall. ••••••	without ceremony ••••••	done simply, without formality ••••••	ritual, event, celebration, function, observance ••••••	informality, casualness ••••••	wedding ceremony, opening ceremony, award ceremony, official ceremony ••••••
#912 ✅ ••••••	certain /ˈsɜːr.tən/ adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	Known for sure; having no doubt. ••••••	I am certain that she will succeed. ••••••	for certain ••••••	Without any doubt. ••••••	sure, confident, definite, assured, convinced ••••••	uncertain, doubtful, unsure ••••••	certain circumstances, certain degree, certain way, certain level ••••••
#913 ✅ ••••••	certainly /ˈsɜːrtənli/ adverb ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	without doubt; surely; used to emphasize certainty ••••••	I will certainly help you with your project. ••••••	certainly not ••••••	used to strongly refuse or disagree ••••••	surely, definitely, undoubtedly, absolutely, clearly ••••••	possibly, maybe, uncertain ••••••	certainly true, certainly help, certainly possible, most certainly ••••••
#914 ✅ ••••••	Certainty /ˈsɜːr.tən.ti/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	firm conviction that something is the case; the quality of being reliably true ••••••	We can say with certainty that the project will be completed on time. ••••••	- ••••••	- ••••••	confidence, assurance, conviction, sureness ••••••	uncertainty, doubt, hesitation ••••••	absolute certainty, with certainty, degree of certainty ••••••
#915 🎓 ••••••	certificate /sərˈtɪfɪkət/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a document serving as proof of achievement or qualification ••••••	She received a certificate for completing the course. ••••••	- ••••••	- ••••••	diploma, qualification, accreditation, award ••••••	disqualification ••••••	receive a certificate, certificate of completion, certificate of achievement ••••••
#916 📜 ••••••	certification /ˌsɜːrtɪfɪˈkeɪʃən/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	the process of officially recognizing or confirming that something or someone meets required standards; an official document proving qualification ••••••	She received her professional certification after completing the training program. ••••••	- ••••••	- ••••••	accreditation, validation, authorization, qualification, endorsement ••••••	disqualification, decertification ••••••	professional certification, certification process, certification program, certification exam ••••••
#917 ⛓️ ••••••	chain /tʃeɪn/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a connected series of metal rings used for fastening or securing things; a series of connected events or businesses ••••••	He wore a gold chain around his neck. ••••••	a chain reaction ••••••	a series of related events triggered by the first event ••••••	link, series, sequence, cord, string ••••••	break, separation ••••••	gold chain, supply chain, food chain, chain of events ••••••
#918 🪑 ••••••	chair /tʃɛr/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a piece of furniture for one person to sit on, typically having a back and four legs ••••••	She pulled up a chair and sat beside me. ••••••	take the chair ••••••	to act as the leader or presiding officer of a meeting ••••••	seat, armchair, stool, bench ••••••	floor, ground ••••••	wooden chair, office chair, rocking chair, chair seat ••••••
#919 👔 ••••••	chairman /ˈtʃɛərmən/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	the leader or head of a meeting, committee, or organization ••••••	The chairman opened the meeting with a short speech. ••••••	chairman of the board ••••••	the head of a company's board of directors ••••••	leader, head, chief, president ••••••	member, follower ••••••	chairman position, acting chairman, board chairman, elected chairman ••••••
#920 👩‍💼 ••••••	chairwoman /ˈtʃɛərˌwʊmən/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a woman who presides over a meeting, committee, or organization; a female leader of a board or council ••••••	She was elected chairwoman of the company after years of experience. ••••••	chairwoman of the board ••••••	the female leader who heads a company’s board of directors ••••••	chair, chairperson, female chair, presiding officer ••••••	chairman, subordinate, member ••••••	chairwoman of the board, elected chairwoman, serve as chairwoman, company chairwoman ••••••
#921 🏔️ ••••••	challenge /ˈtʃælɪndʒ/ noun/verb ••••••	••••••	challenged ••••••	challenged ••••••	challenges ••••••	challenging ••••••	a difficult task or problem that requires effort to overcome; to question or dispute ••••••	Climbing the mountain was the biggest challenge of his life. ••••••	rise to the challenge ••••••	to successfully deal with a difficult situation ••••••	test, trial, obstacle, difficulty, contest ••••••	agreement, acceptance, support ••••••	face a challenge, accept a challenge, big challenge, challenge authority ••••••
#922 🏛️ ••••••	chamber /ˈtʃeɪmbər/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a large room used for formal or public events, or a private room. ••••••	The king held meetings in his private chamber. ••••••	upper chamber ••••••	the higher legislative house in a bicameral parliament ••••••	room, hall, compartment, chamber, council ••••••	open space, outdoors ••••••	chamber of commerce, upper chamber, private chamber, gas chamber ••••••
#923 🥇 ••••••	champion /ˈtʃæmpiən/ noun ••••••	••••••	- ••••••	- ••••••	- ••••••	- ••••••	a person who has defeated all rivals in a competition or fight. ••••••	She became the champion after winning the final match. ••••••	defend the champion ••••••	to maintain one’s title against challengers ••••••	winner, victor, titleholder, hero, defender ••••••	loser, underdog ••••••	world champion, boxing champion, chess champion, defend champion ••••••
#924 🏆 ••••••	championship /ˈtʃæmpiənʃɪp/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a competition to decide who is the best in a particular sport or activity. ••••••	The championship will be held next month. ••••••	win the championship ••••••	to become the victor of a major competition ••••••	tournament, contest, league, competition, cup ••••••	friendly match, practice ••••••	world championship, national championship, championship game, win championship ••••••
#925 🎲 ••••••	chance /tʃæns/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	An opportunity or possibility of something happening. ••••••	He took a chance and applied for the job. ••••••	take a chance ••••••	to do something risky or uncertain in hope of success ••••••	opportunity, possibility, likelihood, probability, prospect ••••••	certainty, impossibility, guarantee ••••••	take a chance, by chance, good chance, slim chance ••••••
#926 🔄 ••••••	change /tʃeɪndʒ/ verb ••••••	••••••	changed ••••••	changed ••••••	changes ••••••	changing ••••••	To make something different or to become different. ••••••	She decided to change her career path. ••••••	change of heart ••••••	a change in one's opinion or feelings ••••••	alter, modify, transform, adjust, shift ••••••	preserve, maintain, keep ••••••	change clothes, change the subject, change behavior, change mind ••••••
#927 🔄 ••••••	Changeable /ˈtʃeɪn.dʒə.bəl/ adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	able to be changed; likely to change frequently ••••••	The weather is very changeable in spring. ••••••	- ••••••	- ••••••	variable, unstable, inconsistent, fickle ••••••	stable, constant, fixed, unchanging ••••••	changeable weather, changeable mood, changeable conditions ••••••
#928 🌦️ ••••••	changing /ˈtʃeɪndʒɪŋ/ verb ••••••	- ••••••	- ••••••	- ••••••	- ••••••	changing ••••••	The act of becoming different; ongoing process of change. ••••••	The weather is changing rapidly. ••••••	- ••••••	- ••••••	modifying, altering, transforming, shifting ••••••	stable, constant, fixed ••••••	changing situation, changing world, changing role, changing rapidly ••••••
#929 📺 ••••••	channel /ˈtʃænəl/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	A means of communication, or a passage for water or information. ••••••	They launched a new TV channel last year. ••••••	go through proper channels ••••••	to follow the official or correct process ••••••	medium, passage, route, conduit, station ••••••	blockage, obstacle ••••••	TV channel, communication channel, sales channel, distribution channel ••••••
#930 🌪️ ••••••	chaos /ˈkeɪɒs/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	A state of complete disorder and confusion. ••••••	The sudden storm caused chaos in the city. ••••••	utter chaos ••••••	a situation of complete and total disorder ••••••	disorder, confusion, turmoil, mayhem, pandemonium ••••••	order, harmony, calm ••••••	create chaos, chaos theory, complete chaos, chaos in ••••••
#931 📖 ••••••	chapter /ˈtʃæptər/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	A main division of a book or a period in someone's life. ••••••	I just finished the first chapter of the novel. ••••••	a new chapter ••••••	a new stage or phase in life ••••••	section, division, episode, part ••••••	whole, entirety ••••••	first chapter, last chapter, next chapter, chapter title ••••••
#932 🎭 ••••••	character /ˈkærəktər/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	the mental and moral qualities distinctive to an individual; a person in a story or play ••••••	The main character in the novel learns an important lesson. ••••••	out of character ••••••	not typical behavior for someone ••••••	personality, nature, figure, role, persona ••••••	facelessness, anonymity ••••••	strong character, fictional character, moral character, character development ••••••
#933 🔑 ••••••	characteristic /ˌkærəktəˈrɪstɪk/ noun/adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	A distinguishing quality or feature of a person, place, or thing. ••••••	Kindness is a characteristic of true leadership. ••••••	Characteristic feature ••••••	A notable quality that identifies something. ••••••	trait, quality, feature, attribute, hallmark ••••••	anomaly, exception ••••••	unique characteristic, human characteristic, defining characteristic ••••••
#934 🖊️ ••••••	characterize /ˈkærəktəraɪz/ verb ••••••	- ••••••	characterized ••••••	characterized ••••••	characterizes ••••••	characterizing ••••••	to describe or portray the distinctive features or qualities of someone or something ••••••	The author characterizes the hero as brave and selfless. ••••••	characterize as ••••••	to describe someone or something in a particular way ••••••	depict, portray, define, describe, represent ••••••	misrepresent, distort ••••••	characterize as, clearly characterize, characterizes the style ••••••
#935 ⚡ ••••••	charge /tʃɑːrdʒ/ verb ••••••	- ••••••	charged ••••••	charged ••••••	charges ••••••	charging ••••••	to demand payment; to formally accuse; to rush forward aggressively ••••••	The store charges extra for home delivery. ••••••	charge someone with ••••••	to accuse someone of a crime ••••••	bill, accuse, attack, command ••••••	free, acquit, retreat ••••••	charge money, charge fee, charge battery, charge with crime ••••••
#936 🤲 ••••••	charity /ˈtʃærəti/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	an organization set up to provide help and raise money for those in need; kindness and tolerance in judging others ••••••	The charity raised funds to support homeless families. ••••••	charity begins at home ••••••	one should take care of their family before helping others ••••••	philanthropy, generosity, organization, kindness ••••••	selfishness, greed ••••••	charity event, charity organization, give to charity, charity work ••••••
#937 💫 ••••••	charm /tʃɑːrm/ noun/verb ••••••	- ••••••	charmed ••••••	charmed ••••••	charms ••••••	charming ••••••	the power or quality of delighting or attracting others; to attract or please greatly ••••••	Her smile never fails to charm everyone around her. ••••••	lucky charm ••••••	an object believed to bring good luck ••••••	appeal, allure, enchantment, fascination, captivate ••••••	repel, displease ••••••	personal charm, lucky charm, charm offensive ••••••
#938 ✨ ••••••	charming /ˈtʃɑːr.mɪŋ/ adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	Very pleasing or delightful in a way that attracts people. ••••••	The village is full of charming little houses. ••••••	- ••••••	- ••••••	attractive, delightful, enchanting, appealing, captivating ••••••	repulsive, unattractive, unpleasant ••••••	charming smile, charming personality, charming place, charming story ••••••
#939 📊 ••••••	chart /tʃɑːrt/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a sheet of information in the form of a table, graph, or diagram ••••••	The teacher used a chart to explain the statistics. ••••••	top the charts ••••••	to reach the number one position in sales or popularity ••••••	graph, diagram, table, map ••••••	text, narrative ••••••	bar chart, pie chart, flow chart, music chart ••••••
#940 📜 ••••••	charter /ˈtʃɑːrtər/ noun/verb ••••••	- ••••••	chartered ••••••	chartered ••••••	charters ••••••	chartering ••••••	a written document granting rights or privileges; to hire a vehicle or vessel for temporary use ••••••	The company decided to charter a bus for the trip. ••••••	charter flight ••••••	a flight hired for exclusive use rather than a scheduled service ••••••	license, permit, hire, lease, commission ••••••	prohibit, deny ••••••	charter flight, charter bus, charter school, royal charter ••••••
#941 🏃‍♂️ ••••••	chase /tʃeɪs/ verb ••••••	••••••	chased ••••••	chased ••••••	chases ••••••	chasing ••••••	to pursue someone or something in order to catch them ••••••	The police chased the thief through the market. ••••••	chase rainbows ••••••	to pursue unrealistic goals ••••••	pursue, hunt, follow, track, run after ••••••	escape, flee, avoid ••••••	chase dreams, chase away, chase down, chase after ••••••
#942 💬 ••••••	chat /tʃæt/ noun; verb ••••••	- ••••••	chatted ••••••	chatted ••••••	chats ••••••	chatting ••••••	an informal conversation; to talk in a friendly, informal way ••••••	We had a long chat after dinner. ••••••	have a chat ••••••	to talk informally with someone ••••••	talk, converse, gossip, discuss, chitchat ••••••	ignore, silence ••••••	have a chat, casual chat, online chat, friendly chat ••••••
#943 💲 ••••••	cheap /tʃiːp/ adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	low in cost; inexpensive ••••••	This shop sells clothes at very cheap prices. ••••••	dirt cheap ••••••	extremely inexpensive ••••••	inexpensive, low-cost, budget, economical, affordable ••••••	expensive, costly ••••••	cheap price, cheap clothes, cheap hotel, cheap deal ••••••
#944 🤥 ••••••	cheat /tʃiːt/ verb ••••••	••••••	cheated ••••••	cheated ••••••	cheats ••••••	cheating ••••••	to act dishonestly or unfairly to gain an advantage ••••••	He cheated on the exam and got caught by the teacher. ••••••	cheat death ••••••	to narrowly escape death ••••••	deceive, trick, defraud, mislead, con ••••••	be honest, obey ••••••	cheat in exam, cheat someone, cheat sheet, cheat code ••••••
#945 🤥 ••••••	cheater /ˈtʃiːtər/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a person who cheats or acts dishonestly to gain an advantage ••••••	He was caught and labeled as a cheater during the exam. ••••••	once a cheater, always a cheater ••••••	someone who cheats once is likely to cheat again ••••••	fraud, swindler, deceiver, trickster, impostor ••••••	honest person, fair player, truth-teller ••••••	exam cheater, habitual cheater, notorious cheater, cheating scandal ••••••
#946 ✔️ ••••••	check /tʃɛk/ verb, noun ••••••	- ••••••	checked ••••••	checked ••••••	checks ••••••	checking ••••••	To examine, inspect, or verify something; also a written order to a bank to pay money. ••••••	Please check the report before submitting it. ••••••	check in ••••••	To register upon arrival, typically at a hotel or airport. ••••••	inspect, examine, verify, review, control ••••••	ignore, neglect, overlook ••••••	check report, check balance, check in, check out ••••••
#947 😊 ••••••	cheek /tʃiːk/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	either side of the face below the eye; impudent boldness ••••••	She kissed him on the cheek. ••••••	turn the other cheek ••••••	to respond to an insult without retaliation ••••••	face, boldness, nerve, audacity ••••••	politeness, humility ••••••	rosy cheek, kiss on cheek, slap on cheek, chubby cheeks ••••••
#948 🎉 ••••••	cheer /tʃɪər/ verb ••••••	- ••••••	cheered ••••••	cheered ••••••	cheers ••••••	cheering ••••••	to shout in encouragement or support; to make someone feel happier ••••••	The fans cheered loudly when their team scored a goal. ••••••	cheer up ••••••	to become happier or to make someone feel happier ••••••	applaud, encourage, boost, inspire, uplift ••••••	boo, depress ••••••	cheer up, cheer for, cheer loudly, cheer crowd ••••••
#949 😊 ••••••	Cheerful /ˈtʃɪə.fəl/ adjective ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	happy and optimistic; full of joy and good spirits; bright and lively ••••••	She has a cheerful personality that brightens everyone's day. ••••••	- ••••••	- ••••••	happy, joyful, upbeat, bright, merry ••••••	sad, gloomy, cheerless, depressed, melancholy ••••••	cheerful smile, cheerful mood, cheerful disposition, cheerful voice ••••••
#950 😊 ••••••	cheerfully /ˈtʃɪəfəli/ adverb ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	in a happy and positive manner; with visible good spirits ••••••	She greeted everyone cheerfully despite the long day. ••••••	- ••••••	- ••••••	happily, gladly, joyfully, merrily, brightly ••••••	sadly, gloomily, miserably ••••••	smile cheerfully, speak cheerfully, greet cheerfully, laugh cheerfully ••••••
#951 🧀 ••••••	cheese /tʃiːz/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a dairy product made from curdled or cultured milk ••••••	She sliced some cheese for the sandwich. ••••••	say cheese ••••••	a phrase used when asking people to smile for a photo ••••••	dairy, curd, fromage, cheddar, mozzarella ••••••	milk, yogurt ••••••	cheese sandwich, grated cheese, cream cheese, cheese platter ••••••
#952 👨‍🍳 ••••••	chef /ʃɛf/ noun ••••••	••••••	- ••••••	- ••••••	- ••••••	- ••••••	A professional cook, especially the head cook in a restaurant or hotel. ••••••	The chef prepared a delicious five-course meal. ••••••	too many chefs spoil the broth ••••••	If too many people are involved in managing something, it may fail. ••••••	cook, culinarian, head cook, gourmet, culinary artist ••••••	diner, guest, customer ••••••	head chef, master chef, pastry chef, celebrity chef ••••••
#953 ⚗️ ••••••	chemical /ˈkɛmɪkəl/ noun ••••••	- ••••••	- ••••••	- ••••••	- ••••••	- ••••••	a substance produced by or used in a chemical process ••••••	The factory releases harmful chemicals into the river. ••••••	chemical reaction ••••••	a process in which substances interact to form new substances ••••••	compound, substance, element, reagent, solution ••••••	natural, organic ••••••	toxic chemicals, chemical reaction, chemical industry, chemical warfare ••••••