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Difficult words to spell correctly

This list collects English words that trip up even confident writers, from silent letters to unpredictable double consonants. It is aimed at advanced students, adult learners, and anyone preparing for a spelling test or proofreading their own writing. Study a handful at a time, cover the word, write it from memory, then check it against the original spelling.

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Difficult words to spell correctly

30 words
WordMeaningIn a sentenceSave
accommodateverbTo provide someone with a place to stay, or to adapt something to meet a need or request.The hotel can accommodate up to four guests in each family suite.
consciencenounAn inner sense that helps a person judge the moral rightness or wrongness of their own actions.His conscience wouldn't let him keep the extra change the cashier had mistakenly given him.
necessaryadjectiveRequired in order to achieve a particular result or for a situation to be possible.Warm clothing is necessary if you plan to hike the mountain in winter.
embarrassverbTo cause someone to feel awkward, ashamed, or self-conscious in front of others.Tripping on stage in front of the whole school would embarrass anyone.
definitelyadverbWithout doubt; in a way that is certain or clearly established.I will definitely call you back before the end of the day.
separateverbTo divide or set apart from something else, or to stop being together.The teacher separated the students into four small discussion groups.
occurrencenounSomething that happens or takes place; an event, or the fact of something happening.Power outages are a common occurrence during the heaviest storms of the winter.
rhythmnounA strong, regular, repeated pattern of movement or sound, especially in music or speech.The drummer kept a steady rhythm that made it easy for everyone to dance.
questionnairenounA written set of questions used to gather information or opinions from a group of people.Participants filled out a questionnaire about their eating habits before the study began.
maintenancenounThe process of keeping something in good condition through regular checks and repairs.Regular maintenance keeps the old car running smoothly for years.
liaisonnounCommunication or cooperation between groups, or a person who acts as a link between them.She works as a liaison between the marketing team and upper management.
pronunciationnounThe way in which a word or language is spoken, including its sounds and stress.Her pronunciation of the French word improved after weeks of listening to native speakers.
acquaintancenounA person one knows slightly but who is not a close friend.I ran into an old acquaintance from college at the airport yesterday.
bureaucracynounA system of government or organization run by many officials and departments following fixed rules and procedures.Getting a simple building permit required navigating several layers of confusing local bureaucracy.
conscientiousadjectiveCareful, thorough, and diligent, guided by a strong sense of what is right.The conscientious student double-checked every answer before submitting the exam.
entrepreneurnounA person who starts and runs a business, taking on financial risk to do so.The young entrepreneur secured funding for her app after months of pitching investors.
exhilarateverbTo make someone feel very happy, energetic, or excited.The steep roller coaster drop exhilarated even the most nervous riders on board.
hierarchynounA system that ranks people or things in order of status, authority, or importance.The company's hierarchy places the CEO above all regional managers.
millenniumnounA period of one thousand years, or the moment marking the transition from one such period to the next.Historians still debate how much daily life truly changed across that millennium.
miscellaneousadjectiveConsisting of a mixture of various items that do not belong to one single category.The drawer was full of miscellaneous items like rubber bands, batteries, and old keys.
restaurantnounA place where people pay to sit and eat meals that are prepared and served on-site.We celebrated her birthday at a small Italian restaurant downtown.
vacuumnounA space completely empty of matter, including air, or a machine that cleans by suction.Astronauts must wear suits designed to withstand the vacuum of outer space.
weirdadjectiveStrange or unusual in a way that is surprising or hard to explain.There was a weird smell coming from the basement that no one could identify.
believeverbTo accept that something is true or that someone is telling the truth.I believe her story, even though it sounds unlikely.
receiveverbTo get, be given, or accept something that is sent, offered, or handed to one.She was thrilled to receive a handwritten letter from her grandmother last week.
privilegenounA special right, advantage, or immunity granted to a particular person or group.Attending the ceremony was a privilege reserved for top-performing students.
harassverbTo repeatedly trouble, disturb, or attack someone in a way that causes distress or intimidation.The company fired the manager after employees reported that he harassed junior staff.
indispensableadjectiveSo important or useful that it cannot be done without.A reliable internet connection has become indispensable for remote workers.
supersedeverbTo take the place of something, especially something older, outdated, or less effective.The new safety regulations superseded the guidelines written a decade earlier.
ecstasynounAn overwhelming feeling of intense joy, excitement, or pleasure that seems to exceed ordinary experience.She screamed in pure ecstasy when she saw her name on the winners' list.

Why these words are so tricky

Many difficult words break spelling rules learners rely on, like i before e, or hide silent and doubled letters that don't match pronunciation. Others, such as bureaucracy and entrepreneur, come from French or Greek roots that keep their original spelling patterns. Reading the words aloud syllable by syllable, and noticing which letters are silent or doubled, makes the irregular spellings easier to remember over time.

Frequently asked questions

What makes a word difficult to spell?

Words become hard to spell when their sound doesn't match their letters, such as silent letters, unusual doubled consonants, or borrowed spelling patterns from other languages.