A person who studies at school. Often refers to someone learning at a junior high or high school. For university, 「学生」 is used.
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N3青年せいねん
A young person around 20 years old. Especially often used for males. Example: 「青年時代」 (one's youth).
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N3政府せいふ
government. The organization that carries out the politics of a country. Example: 「日本政府」 (the Japanese government).
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N3制服せいふく
uniform. Clothing that is decided to be worn at a school, company, etc.
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N3生物せいぶつ
Living things overall, including animals and plants. When read 「なまもの」, it means food that has not been cooked.
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N3性別せいべつ
gender. The distinction between male and female. Example: 「性別を問わない」 (regardless of gender).
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N2, N3生命せいめい
Life. Often used in written language or set expressions such as 「生命保険」 (life insurance); in spoken language, 「命」 is normal.
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N2制約せいやく
A condition or rule that limits the scope of action or choice. A formal word used in forms like 「制約を受ける」「制約がある」「時間の制約」, referring to various restrictions of a physical, contractual, or temporal nature.
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N2, N3整理せいり
To neatly tidy up things that are scattered around. Example: 「机の上を整理する」 (to tidy up a desk). Also used to mean organizing thoughts or information in an understandable way, as in 「問題点を整理する」 (to organize the problem points).
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N3背負うせおう
The act of carrying something on one's back. The act of taking on responsibility, burden, or fate. Used in forms like 「荷物を背負う」「責任を背負う」, in both physical and metaphorical senses.
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N2急かすせかす
The act of urging someone to hurry up. Used in forms like 「子どもを急かす」「返事を急かす」, with the sense of pushing someone to speed up when they are acting calmly.
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N3せきせき
To forcefully expel breath from the throat. Example: 「せきが出る」 (to cough). Written with the kanji 「咳」, but since this kanji is not used in daily life, it is usually written in hiragana.
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N2積載せきさい
The act of loading cargo onto vehicles or ships. A formal word used in forms like 「積載量」「最大積載重量」, a technical and legal term referring to placing goods onto transport equipment.
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N3責任せきにん
responsibility. A duty one has taken on and must carry through. Example: 「責任がある」 (to bear responsibility). Also used to mean accepting the consequences of a failure, as in 「責任を取る」 (to take responsibility).
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N3石油せきゆ
petroleum. Oil extracted from underground. It becomes a raw material for fuel and plastics.
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N2世辞せじ
Words of praise spoken not from the heart but to please someone. Often used in the form 「お世辞」, a somewhat formal word referring to formal, social pleasantries.
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N2世相せそう
The overall state and trend of society in a given era. A formal word used in forms like 「世相を反映する」「世相を映す」, often appearing in public writing such as newspapers, editorials, or commentary.
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N2世俗せぞく
The ordinary, everyday world, as opposed to the religious or spiritual. A formal word used in forms like 「世俗を離れる」「世俗的な関心」, referring to mundane, secular matters.
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N3積極的せっきょくてき
A state of doing things on one's own initiative. Example: 「積極的に発言する」 (to speak up proactively). The antonym is 「消極的」 (passive).
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N5せっけんせっけん
soap. Something used to wash the body or hands. Written with the kanji 「石鹸」, but usually written in hiragana in daily life.
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N2摂取せっしゅ
The act of taking nutrients, knowledge, or information into the body or mind. A formal word used in forms like 「栄養を摂取する」「情報を摂取する」, mainly referring to intentional intake for health or learning.
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N3絶対ぜったい
absolutely. No matter what, without fail. Example: 「絶対に行く」 (I will definitely go). When used with a negative form, it means "never," as in 「絶対にしない」 (I will never do it).
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N2絶体絶命ぜったいぜつめい
A situation in which one is utterly cornered with no means of escape. A four-character idiom. A formal word used in forms like 「絶体絶命のピンチ」「絶体絶命の状況」, emphasizing a critical situation.
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N3節約せつやく
To reduce waste and use money or things carefully. Example: 「電気代を節約する」 (to save on electricity bills). The paired expression is 「むだづかい」 (wasteful spending).
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N2是非ぜひ
A judgment of whether something is good or bad, right or wrong. A formal word used in forms like 「是非を問う」「是非を論じる」. It shares its reading and characters with the adverb 「ぜひ」 (by all means) but differs in usage; here it is treated as a noun.
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N5狭いせまい
A state where a place is small. The antonym is 「広い」 (spacious).
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N3全員ぜんいん
everyone. All the people present at that place or gathering. Example: 「全員が賛成した」 (everyone agreed).
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N2旋回せんかい
The act of turning in a circular path. Particularly refers to airplanes or birds tracing arcs in the air. A formal word used in forms like 「上空を旋回する」, applied to rotational motion in the air or above.
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N3選挙せんきょ
election. To choose a representative by voting. Example: 「選挙に行く」 (to go vote in an election).
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N5先月せんげつ
The month before this month.
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N2先行せんこう
Going ahead of others. Doing something before the scheduled time. A formal word used in forms like 「先行研究」「販売に先行する」「先行発売」, with the meaning of being positioned earlier in time or order.
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N2繊細せんさい
Delicate and keen in sense or feeling. Finely and elegantly made in object construction. A formal word used in forms like 「繊細な感性」「繊細な細工」, used for both human sensibilities and the construction of objects.
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N3洗剤せんざい
detergent. A chemical used for washing laundry or dishes to remove dirt.
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N3選手せんしゅ
A person chosen to compete in a competition. Often broadly used to refer to someone who plays sports in general. Example: 「野球選手」 (a baseball player).
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N5先週せんしゅう
The week before this week.
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N3全身ぜんしん
The whole body. Example: 「全身がぬれる」 (to get soaked all over). Note the distinction from the homophone 「前進」 (moving forward).
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N2宣誓せんせい
The solemn vow in an official setting to tell the truth or to fulfill duties. A formal word used in forms like 「宣誓する」「選手宣誓」 in official contexts such as courts, ceremonies, or athletic competitions.
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N5先生せんせい
teacher. A person who teaches at a school, etc.
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N3先祖せんぞ
ancestor. People from generations before oneself in a family line. Example: 「先祖の墓」 (an ancestor's grave). The antonym is 「子孫」 (descendants).
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N3選択せんたく
choice. To choose among several options. Example: 「選択肢」 (a choice/option). Note the distinction from the homophone 「洗濯」 (doing laundry).
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N5洗濯せんたく
To wash clothes, etc., with water. 「洗濯機」 (washing machine) is also commonly used.
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N3宣伝せんでん
To let many people know about a product or idea, spreading it widely. Example: 「新商品を宣伝する」 (to advertise a new product).
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N2先入観せんにゅうかん
A fixed view or impression held even before actual encounter. A formal word used in forms like 「先入観を持つ」「先入観にとらわれる」, often expressing in a negative sense the preconceptions that distort judgment.
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N2専念せんねん
The act of dedicating oneself to one thing alone, without doing other things. A formal word used in forms like 「研究に専念する」「治療に専念する」, with the meaning of devoting all one's effort to a particular activity for a fixed period.
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N5全部ぜんぶ
All. Everything; the state of nothing being left over.
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N2, N4専門せんもん
To study or research one thing deeply. Example: 「専門は経済です」 (my specialty is economics).
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N3象ぞう
elephant. The largest land animal, with a long trunk and large ears.
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N3騒音そうおん
noise. Sound that feels bothersome. Used for sounds that disturb daily life, such as construction or traffic noise.
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N3増加ぞうか
increase. For a number or amount to grow. Example: 「人口の増加」 (population increase). The antonym is 「減少」 (decrease).
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N2走行そうこう
The action of vehicles running. The subjects are means of transport with engines or wheels, such as cars, trains, or bicycles. Used in forms like 「車両が高速で走行する」. Not used for scenes of people or animals running.
This word has different meanings and uses at each level
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