トピック別英語語彙：48の必須単語
テーマ別に語彙を積み上げることは、あらゆるレベルの英語学習者にとって最も効率的なアプローチです。各カテゴリには、日常で実際に出会う8つのキーワードをまとめています。検索またはフィルターで最も関連する分野に絞り込んでください。
48 words · 6 topics
"grocery shopping"
buying food and household items at a supermarket
"I do my grocery shopping every Saturday morning."
"run errands"
make short trips to complete small tasks
"I need to run a few errands before the weekend."
"household chores"
regular cleaning and maintenance tasks at home
"We divide the household chores between us."
"commute"
travel regularly between home and work or school
"Her daily commute takes about 45 minutes by train."
"utility bills"
regular payments for electricity, gas, and water
"The utility bills went up significantly this winter."
"landlord"
a person who rents out a property to tenants
"Our landlord fixed the broken boiler within a day."
"neighbourhood"
the area surrounding where you live
"It's a quiet neighbourhood with lots of parks."
"get-together"
an informal social meeting or small party
"We're having a small get-together at our place on Friday."
"job interview"
a formal meeting where an employer assesses a candidate
"She prepared thoroughly for the job interview."
"CV / résumé"
a document listing your work experience and qualifications
"Update your CV before you apply for new positions."
"deadline"
the latest time by which something must be done
"The report deadline is this Thursday at noon."
"promotion"
being moved to a higher-ranking position
"He was offered a promotion to senior manager."
"colleague"
a person you work with
"She introduced me to her colleagues in the marketing team."
"remote work"
working from a location other than the main office
"Remote work has become standard in many industries."
"networking"
building professional relationships for mutual benefit
"Networking at industry events helped her find new clients."
"work-life balance"
managing time effectively between professional and personal life
"Good work-life balance reduces stress and burnout."
"boarding pass"
the document that allows you to board an aircraft
"Don't forget to download your boarding pass before you leave."
"check in"
register your arrival at a hotel or airport
"You can check in online 24 hours before departure."
"customs"
the border control process where goods are inspected
"We had nothing to declare at customs."
"layover"
a stop between connecting flights
"We have a three-hour layover in Dubai."
"accommodation"
a place to stay, such as a hotel or hostel
"We booked affordable accommodation near the city centre."
"roundabout"
a circular junction where traffic flows in one direction
"Take the second exit at the roundabout."
"jet lag"
tiredness and disorientation from long-distance air travel
"It took me a week to recover from jet lag."
"itinerary"
a planned route or schedule for a trip
"The travel agent sent us a detailed itinerary."
"prescription"
a doctor's written order for medicine
"The doctor gave me a prescription for antibiotics."
"symptom"
a sign of illness felt by the patient
"Fatigue is a common symptom of anaemia."
"appointment"
a scheduled meeting with a doctor or specialist
"I booked an appointment with my GP for Monday."
"allergic reaction"
an immune response to a substance that is normally harmless
"She had a mild allergic reaction to the pollen."
"blood pressure"
the force of blood against artery walls, measured as a health indicator
"High blood pressure increases the risk of heart disease."
"surgery"
a medical procedure involving cutting or operating on the body
"He recovered quickly after the minor surgery."
"mental health"
a person's emotional and psychological well-being
"Talking to a therapist improved her mental health."
"physical therapy"
treatment using exercises and movement to recover from injury
"The physiotherapist gave her exercises for physical therapy."
"streaming"
watching or listening to content directly over the internet
"Streaming services have replaced cable TV for many people."
"software update"
a new version of a program that fixes bugs or adds features
"Install the software update to improve security."
"bandwidth"
the maximum amount of data transmitted over a network connection
"Video calls require a lot of bandwidth."
"algorithm"
a set of rules used by software to make decisions
"The recommendation algorithm shows you similar videos."
"phishing"
a scam that tricks people into revealing personal information online
"Never click links in phishing emails."
"cloud storage"
saving files on remote servers accessed via the internet
"All her photos are backed up in cloud storage."
"influencer"
a person with a large online following who promotes products or ideas
"The brand partnered with an influencer to reach young audiences."
"user interface"
the visual elements through which a person interacts with software
"The new user interface is cleaner and easier to navigate."
"curriculum"
the subjects and content studied in a course or school
"The new curriculum includes more STEM subjects."
"assignment"
a task set by a teacher or lecturer to be completed
"The assignment is due by Friday at midnight."
"tuition"
teaching or instruction, or the fee paid for it
"University tuition fees have risen sharply in recent years."
"scholarship"
financial support awarded to a student based on merit or need
"She won a full scholarship to study abroad."
"thesis"
a long research paper written for a university degree
"He spent two years writing his doctoral thesis."
"peer review"
evaluation of academic work by other experts in the field
"The article passed peer review and was published in the journal."
"extracurricular"
activities done outside regular school lessons
"Drama club is her favourite extracurricular activity."
"lifelong learning"
the ongoing voluntary pursuit of knowledge throughout life
"Technology is changing so fast that lifelong learning is essential."
よくある質問
英語を流暢に話すには何語必要ですか？
研究によると、英語で最も頻繁に使われる3,000語族を知ることで、日常のテキストの約95%をカバーできます。会話での流暢さには1,500〜2,000語が現実的な目標です。テーマ別学習では、仕事・旅行・医療など自分の目的に必要な語彙を、頻度リストを丸暗記するよりずっと速く習得できます。
テーマ別に英語語彙を学ぶ最良の方法は？
最も効果的な方法は、特定のテーマに関する本物のコンテンツを読んだり聞いたりし、文脈の中で新しい単語を記録し、間隔反復で復習することです。たとえば医療語彙を学びたい場合、英語の健康動画を見ることで、同じ単語が自然な文脈で繰り返し登場します。これはフラッシュカードだけより長く記憶に残ります。
英語の新しい語彙を覚えるにはどうすればいいですか？
間隔反復と意味のある文脈が、記憶の2大ツールです。初めて単語を学んだら、自分でその単語を使った文を書いてみましょう。その後、1日後・3日後・1週間後・1か月後に復習します。単語を個人的な記憶やイメージと結びつけると、定着率が劇的に上がります。Ankiなどのアプリはこの科学的原理を実装しています。
語族として語彙を学ぶべきですか？
はい。語族（名詞・動詞・形容詞・副詞の形）をまとめて学ぶと、語彙が急速に増えます。"economy" を学ぶと同時に "economic"・"economically"・"economist"・"economise" も習得できます。このアプローチで1語の価格で4〜5語を得られ、IELTSやTOEFLなどの試験でリーディングとライティングの両スコアが向上します。
テーマ別語彙と一般語彙の違いは何ですか？
一般語彙とは、あらゆる文脈で使われる高頻度の単語（例：get・make・think）のことです。テーマ別語彙は専門的なもので、たとえば "prescription" は主に医療文脈で、"bandwidth" は主にテクノロジーの議論で登場します。どちらも必要ですが、特定の職業的・社会的場面で自然に聞こえるようになるのはテーマ別語彙です。
語彙を定着させる最速の方法は、自然な英語で聞くことです。
リアルな文脈でこれらの単語を聞く →