英検準2級プラスは、準2級と2級の橋渡しとなる級で、単語・語彙をさらに増やすことが重要です。
ここでは、準2級プラスで覚えておきたい単語の目安と、覚えた方がよい単語の一覧（例）・勉強法を、わかりやすくまとめました。
なお、日本英語検定協会は、各級の「必要単語数」や「公式の語彙リスト」を公表していません。
以下は、教材・塾等でよく挙げられる目安・代表例です。
英検準2級プラスの語彙数目安（参考）
準2級プラスは高校中級～上級の入り口程度で、必要な語彙数は約4,000語前後という説明が多く見られます。
準2級の約2,500～3,600語からさらに増え、2級に近い語彙が求められます。
準2級プラスで問われる単語の傾向
準2級と同様の日常生活の話題に加え、社会・環境・科学・文化など、やや抽象度の高い語が増えます。
長文読解では、接続詞・副詞（however, therefore, moreover, otherwise など）で文の流れを押さえることが大切です。
ライティングでは、理由・意見を述べるときに使う語（advantage, disadvantage, in my opinion など）を押さえておくとよいです。
覚えた方がよい単語一覧（例・カテゴリ別）
以下は、準2級プラスレベルで覚えておくとよいとされる代表的な語の例です。公式の出題リストではありません。
動詞
achieve, affect, announce, approach, assume, attract, compare, concern, confirm, connect, consider, contribute, convince, decline, define, demand, demonstrate, describe, determine, discover, enable, ensure, establish, evaluate, examine, expand, experience, focus, identify, imagine, indicate, influence, inform, intend, introduce, maintain, mention, notice, observe, occur, participate, perform, persuade, predict, prefer, prepare, present, prevent, promote, protect, prove, publish, realize, recognize, reflect, regard, relate, remain, remove, replace, represent, request, research, respond, reveal, seek, select, share, solve, state, succeed, suffer, supply, suppose, survive, tend
名詞
ability, access, action, activity, advantage, analysis, approach, area, aspect, attitude, audience, authority, behavior, benefit, campaign, category, challenge, character, circumstance, claim, comment, communication, community, comparison, concept, conclusion, condition, conflict, connection, consequence, contact, content, context, contribution, control, criticism, culture, decision, definition, demand, description, detail, development, difference, difficulty, direction, discussion, distribution, economy, effect, effort, element, energy, environment, evidence, example, exception, exchange, existence, expansion, experience, explanation, expression, factor, failure, feature, focus, form, function, generation, goal, growth, habit, impact, importance, improvement, increase, influence, information, instance, intention, interest, introduction, issue, knowledge, level, limit, loss, manner, material, matter, means, measure, method, movement, nature, need, number, observation, opportunity, option, order, organization, outcome, part, pattern, performance, period, policy, position, possibility, practice, process, product, program, progress, project, purpose, quality, quantity, question, range, rate, reason, recognition, record, reference, relation, relationship, report, request, research, resource, response, result, role, rule, safety, scene, section, sense, service, situation, skill, solution, source, stage, standard, statement, step, strategy, structure, subject, success, suggestion, support, system, task, technique, technology, term, theory, thought, topic, trend, type, use, value, view, way
形容詞
acceptable, accurate, active, actual, additional, adequate, advanced, alternative, appropriate, average, aware, basic, central, chemical, civil, commercial, complex, considerable, constant, conventional, creative, critical, cultural, current, daily, dangerous, detailed, direct, distinct, domestic, economic, effective, efficient, emotional, empty, entire, equal, essential, ethical, European, evident, exact, excellent, existing, experimental, external, extreme, fair, familiar, financial, formal, frequent, fundamental, general, global, historical, human, ideal, immediate, independent, industrial, initial, inner, intellectual, intelligent, internal, international, key, legal, limited, local, logical, main, major, mental, minor, moral, multiple, national, natural, negative, normal, obvious, official, original, overall, particular, passive, permanent, physical, political, positive, potential, practical, precious, previous, primary, prime, principal, private, professional, proper, public, pure, rapid, rare, raw, real, reasonable, recent, regular, relevant, religious, remote, responsible, scientific, secondary, secure, significant, similar, simple, single, social, solid, special, specific, spiritual, stable, standard, strict, strong, substantial, successful, sufficient, suitable, superior, technical, temporary, total, traditional, typical, unique, universal, unusual, useful, valid, various, vast, virtual, visible, weak, widespread
副詞・接続詞
accordingly, actually, additionally, admittedly, alternatively, anyway, approximately, as a result, as well, besides, clearly, completely, consequently, constantly, currently, definitely, deliberately, directly, effectively, entirely, equally, especially, essentially, eventually, evidently, exactly, exclusively, extremely, fairly, finally, firmly, frequently, fully, generally, gradually, hardly, hence, highly, hopefully, ideally, immediately, increasingly, indeed, independently, initially, instead, largely, mainly, merely, necessarily, normally, notably, obviously, occasionally, originally, otherwise, particularly, partly, perfectly, perhaps, permanently, personally, physically, potentially, precisely, primarily, probably, properly, purely, quickly, quite, rather, readily, really, recently, relatively, repeatedly, reportedly, respectively, seriously, significantly, similarly, simply, slightly, slowly, somehow, specifically, steadily, still, strongly, subsequently, successfully, sufficiently, surely, surprisingly, temporarily, thoroughly, thus, totally, traditionally, typically, ultimately, unfortunately, undoubtedly, unexpectedly, unfortunately, uniquely, usually, utterly, virtually, widely
フレーズの例
as a result of, in addition to, on the other hand, in terms of, due to, in spite of, take advantage of, play a role in
準2級プラスの単語の勉強法
準2級の語彙を復習したうえで、2級向けの単語帳の前半や「でる順」の上位を進めると効率的です。
長文で出てきた接続詞・副詞の意味と使い方をノートにまとめ、ライティングで使う練習をすると、読解と作文の両方で役立ちます。
過去問で空所補充・長文の語をチェックし、くり返し復習しましょう。
単語帳（でる順パス単など）で覚えたあと、覚えているかどうかの復習として、英検対策アプリ「AiKen（アイケン）」の単語テストを実力チェックに活用するのもおすすめです。
間違えた問題を記録したり、音読機能で発音を確認しながら練習できるので、苦手な語を集中的に学習できます。
まとめ
準2級プラスでは約4,000語前後という目安がよく使われています。
準2級と2級の橋渡しとして、動詞・名詞・形容詞・副詞をバランスよく増やし、接続詞・フレーズも押さえておくと、一次・二次の両方で役立ちます。
過去問や単語帳でくり返し覚え、合格を目指しましょう。
準2級プラスの単語を効率的に覚えるには、復習のタイミングを管理し、ライティング練習もできるツールがあると便利です。
英検対策アプリ「AiKen（アイケン）」は、5級から1級まで、単語・リーディング・ライティング・スピーキングをひとつのアプリで対策できます。
AIが作文を添削してくれるので、覚えた語をライティングで使う練習も続けやすくなります。
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