| 理由 | りゆう | reason; grounds; pretext; excuse | n4 |
| 由来 | ゆらい | origin; source; history; derivation | n1 |
| 自由 | じゆう | freedom; liberty | n4 |
| 由 | よし | reason; significance; cause; piece of information that one has heard | |
| 不自由 | ふじゆう | discomfort; inconvenience; poverty; want | n2 |
| 自由に | じゆうに | freely; at liberty; at will; as one likes | |
| 由緒 | ゆいしょ | history; pedigree; lineage | n1 |
| 経由 | けいゆ | going through; going via; going by way of | n3 |
| 由る | よる | to be due to; to be caused by; to depend on; to turn on | n5 |
| 自由自在 | じゆうじざい | free; unrestricted; (with) complete mastery; completely in control | |
| 事由 | じゆう | reason; cause; whys and wherefores; particulars | n4 |
| 自由度 | じゆうど | degree of freedom | |
| 由縁 | ゆえん | acquaintance; relation; affinity; reason | n3 |
| 自由党 | じゆうとう | Liberal Party | |
| 自由主義 | じゆうしゅぎ | liberalism | |
| 表現の自由 | ひょうげんのじゆう | freedom of expression | |
| 自由化 | じゆうか | liberalization; liberalisation; freeing | |
| 由々しい | ゆゆしい | grave; serious; alarming | |
| 自由民主党 | じゆうみんしゅとう | Liberal Democratic Party; LDP; Free Democratic Party (Germany); FDP | |
| 自由形 | じゆうがた | freestyle (e.g. swimming event) | |
| 自由意志 | じゆういし | free will | |
| 由々しき | ゆゆしき | grave; serious; alarming | |
| 自由席 | じゆうせき | unreserved seat; non-reserved seat | n2 |
| 自由研究 | じゆうけんきゅう | research project (e.g. at school); independent research | |
| 自由権 | じゆうけん | civil liberties | |
| 自由時間 | じゆうじかん | free time; time at leisure | |
| 自由診療 | じゆうしんりょう | medical treatment at one's own expense; treatment not covered by health insurance | |
| 来由 | らいゆ | origin; cause | |
| 原由 | げんゆ | reason; cause | n1 |
| 自由奔放 | じゆうほんぽう | free and uncontrolled; behaving with abandon; freewheeling | |
| 因由 | いんゆ | cause | |
| 自由貿易 | じゆうぼうえき | free trade | |
| 自由落下 | じゆうらっか | free fall | |
| 縁由 | えんゆ | connection; relationship; origin; reason | |
| 自由参加 | じゆうさんか | free-for-all; open-to-all; optional (to participate in); non-compulsory | |
| 自由人 | じゆうじん | free person; free spirit | |
| 自由刑 | じゆうけい | freedom-restricting punishment; imprisonment | |
| 存在理由 | そんざいりゆう | reason for being; raison d'être | |
| 自由主義者 | じゆうしゅぎしゃ | liberal; liberalist | |
| 経由地 | けいゆち | transit point; transit airport; connection airport | |
| 自由競争 | じゆうきょうそう | free competition | |
| 自由都市 | じゆうとし | free city (of Germany); commune (of medieval Europe) | |
| 自由闊達 | じゆうかったつ | free and easy; open and natural; not fastidious | |
| 自由気まま | じゆうきまま | free; unfettered; according to one's own whims; doing as one likes | |
| 理由付け | りゆうづけ | rationalization; justification | |
| 自由恋愛 | じゆうれんあい | free love | |
| 自由型 | じゆうがた | freestyle (e.g. swimming event) | |
| 自由帳 | じゆうちょう | free-use notebook (unruled paper); general-purpose notebook | |
| 自由業 | じゆうぎょう | self-employed profession (e.g. actor, artist); liberal profession | |
| 自由水 | じゆうすい | free water | |
| 自由市場 | じゆうしじょう | free market | |
| 自由豁達 | じゆうかったつ | free and easy; open and natural; not fastidious | |
| 自由電子 | じゆうでんし | free electron | |
| 自由国 | じゆうこく | free state | |
| 積極的自由 | せっきょくてきじゆう | positive liberty | |
| 自由労働者 | じゆうろうどうしゃ | casual laborer (labourer); day laborer (labourer) | |
| 自由民 | じゆうみん | free people; free men | |
| 服装自由 | ふくそうじゆう | no dress code; lack of dress code (at work) | |
| 自由契約 | じゆうけいやく | free agency; free contract; free booking; freelance | |
| 自由放任 | じゆうほうにん | laissez-faire; non-intervention | |
| 自由連合 | じゆうれんごう | Liberal League (Japanese political party, 1994-2005) | |
| 消極的自由 | しょうきょくてきじゆう | negative liberty | |
| 自由港 | じゆうこう | a free port | |
| 判決理由 | はんけつりゆう | ratio decidendi; reason for a verdict | |
| 参加自由 | さんかじゆう | free-for-all; open-to-all; optional (to participate in); non-compulsory | |
| 契約自由 | けいやくじゆう | freedom of contract | |
| 自由形式 | じゆうけいしき | free format | |
| 自由粒子 | じゆうりゅうし | free particle | |
| 自由経済 | じゆうけいざい | free economy | |
| 自由結婚 | じゆうけっこん | freedom to choose one's marriage partner, parental wishes notwithstanding | |
| 自由裁量 | じゆうさいりょう | latitude; (at one's) discretion; discretionary powers; a free hand | |
| 民主自由党 | みんしゅじゆうとう | Democratic Liberal Party (1948-1950) | |
| 自由思想家 | じゆうしそうか | freethinker | |
| 候由 | そうろうよし | I hear that ... | |
| 率由 | そつゆう | following (a precedent, former example, etc.) | |
| 由なき | よしなき | meaningless; senseless; absurd | |
| 由婁漫 | イルマン | brother; lay brother; non-ordained member of a Christian religious order | |
| 由有る | よしある | of rank; of noble birth | |
| 由来書 | ゆらいがき | history (of something); memoir | |
| 由無き | よしなき | meaningless; senseless; absurd | |
| 自由円 | じゆうえん | free yen; 1960 enabling conversion of yen to other currencies | |
| 自由画 | じゆうが | free drawing | |
| 自由訳 | じゆうやく | free translation; liberal translation | |
| 自由詩 | じゆうし | free verse | |
| 自由財 | じゆうざい | free goods | |
| 那由他 | なゆた | an extremely great number (often said to be 100 million); 10^60 (or 10^72) | |
| 那由多 | なゆた | an extremely great number (often said to be 100 million); 10^60 (or 10^72) | |
| に由らず | によらず | regardless of; irrespective of; independently of; despite | |
| 上告理由 | じょうこくりゆう | ground for appeal | |
| 天然由来 | てんねんゆらい | naturally derived; naturally occurring | |
| 性の自由 | せいのじゆう | sexual freedom | |
| 性的自由 | せいてきじゆう | sexual freedom | |
| 控訴理由 | こうそりゆう | grounds for an appeal | |
| 改版理由 | かいはんりゆう | reason for revision; reason for modification | |
| 文脈自由 | ぶんみゃくじゆう | context-free | |
| 海洋自由 | かいようじゆう | freedom of the sea | |
| 理由づけ | りゆうづけ | rationalization; justification | |
| 由ありげ | よしありげ | meaningful; suggestive; seeming to be with a history; seeming to be with circumstances that are hard to explain | |
| 由あり気 | よしありげ | meaningful; suggestive; seeming to be with a history; seeming to be with circumstances that are hard to explain | |
| 由なし事 | よしなしごと | trivial thing; nonsense | |
| 由来書き | ゆらいがき | history (of something); memoir | |
| 由無し事 | よしなしごと | trivial thing; nonsense | |
| 由由しい | ゆゆしい | grave; serious; alarming | |
| 由由しき | ゆゆしき | grave; serious; alarming | |
| 由緒ある | ゆいしょある | venerable; prestigious; with a long history | |
| 経由銀行 | けいゆぎんこう | intermediary bank; correspondent bank | |
| 自由の身 | じゆうのみ | freedom; free man; free woman | |
| 自由三昧 | じゆうざんまい | free; unfettered; according to one's own whims; doing as one likes | |
| 自由世界 | じゆうせかい | the free world (historically as opposed to the Communist bloc) | |
| 自由価格 | じゆうかかく | free price (price determined by market forces) | |
| 自由加群 | じゆうかぐん | free module | |
| 自由勝手 | じゆうかって | free; unfettered; according to one's own whims; doing as one likes | |
| 自由営業 | じゆうえいぎょう | unrestricted operations | |
| 自由大気 | じゆうたいき | free atmosphere (part of the atmosphere above the frictional influence of the earth's surface); free air | |
| 自由思想 | じゆうしそう | free thought | |
| 自由戦士 | じゆうせんし | freedom fighter | |
| 自由教育 | じゆうきょういく | liberal education; education free from restrictions imposed by government, religion, etc. | |
| 自由旅程 | じゆうりょてい | multi-city flight | |
| 自由時報 | じゆうじほう | Liberty Times (Taiwanese newspaper) | |
| 自由曲線 | じゆうきょくせん | freeform curve | |
| 自由気儘 | じゆうきまま | free; unfettered; according to one's own whims; doing as one likes | |
| 自由滑走 | じゆうかっそう | free skating | |
| 自由濶達 | じゆうかったつ | free and easy; open and natural; not fastidious | |
| 自由膨張 | じゆうぼうちょう | free expansion | |
| 自由行動 | じゆうこうどう | free action; free activity; acting at one's own discretion; taking one's own course | |
| 自由表面 | じゆうひょうめん | free surface | |
| 自由討議 | じゆうとうぎ | free discussion | |
| 自由課題 | じゆうかだい | freeform assignment (esp. one to be completed over the summer break) | |
| 自由連想 | じゆうれんそう | free association | |
| 自由選挙 | じゆうせんきょ | free election; free elections | |
| 見学自由 | けんがくじゆう | free to visit; admission-free | |
| 逮捕理由 | たいほりゆう | reason for arrest | |
| 人身の自由 | じんしんのじゆう | freedom of the person; personal freedom; personal liberty | |
| 体の不自由 | からだのふじゆう | (physically) disabled; handicapped | |
| 信仰の自由 | しんこうのじゆう | freedom of religion | |
| 信教の自由 | しんきょうのじゆう | freedom of religion | |
| 充足理由律 | じゅうそくりゆうりつ | principle of sufficient reason | |
| 内面の自由 | ないめんのじゆう | freedom of thought | |
| 出版の自由 | しゅっぱんのじゆう | freedom of the press | |
| 四つの自由 | よっつのじゆう | the Four Freedoms (as defined by Franklin D. Roosevelt: freedom of speech, freedom of worship, freedom from want, freedom from fear) | |
| 報道の自由 | ほうどうのじゆう | freedom of the press | |
| 市場自由化 | しじょうじゆうか | market liberalization; market liberalisation; opening up of a market | |
| 志望理由書 | しぼうりゆうしょ | statement of purpose; essay/letter in university application form | |
| 思想の自由 | しそうのじゆう | freedom of thought | |
| 意志の自由 | いしのじゆう | freedom of will; free will | |
| 招聘理由書 | しょうへいりゆうしょ | invitation letter (e.g. document in support of a visa to enter Japan) | |
| 政治自由化 | せいじじゆうか | political liberalization; political liberalisation | |
| 新自由主義 | しんじゆうしゅぎ | neoliberalism | |
| 漸近的自由 | ぜんきんてきじゆう | asymptotic freedom | |
| 理由の原理 | りゆうのげんり | principle of sufficient reason | |
| 由って来る | よってきたる | originating; causing; beginning | |
| 由緒正しい | ゆいしょただしい | having an ancient and honorable origin; of good lineage; of noble birth | |
| 目の不自由 | めのふじゆう | blindness; the blind | |
| 結社の自由 | けっしゃのじゆう | freedom of association | |
| 耳の不自由 | みみのふじゆう | deafness; the deaf | |
| 自由か死か | じゆうかしか | give me liberty, or give me death | |
| 自由がきく | じゆうがきく | to be flexible; to be accommodating; to have freedom from restrictions | |
| 自由が利く | じゆうがきく | to be flexible; to be accommodating; to have freedom from restrictions | |
| 自由の女神 | じゆうのめがみ | Statue of Liberty | |
| 自由主義国 | じゆうしゅぎこく | free nation | |
| 自由価格本 | じゆうかかくぼん | book not subject to resale price maintenance; book priced by the seller | |
| 自由意志論 | じゆういしろん | doctrine of free will; libertarianism | |
| 自由民権論 | じゆうみんけんろん | (early Meiji era) democratic rights ideology | |
| 自由裁量権 | じゆうさいりょうけん | discretionary power | |
| 良心の自由 | りょうしんのじゆう | freedom of conscience | |
| 言論の自由 | げんろんのじゆう | free speech; freedom of speech | |
| 貿易自由化 | ぼうえきじゆうか | trade liberalization; trade liberalisation | |
| 資本自由化 | しほんじゆうか | liberalization of capital transactions | |
| 身体の自由 | しんたいのじゆう | freedom of the person; personal freedom; personal liberty | |
| 輸入自由化 | ゆにゅうじゆうか | liberalization of imports; liberalisation of imports | |
| 選択の自由 | せんたくのじゆう | freedom of choice; discretion | |
| 集会の自由 | しゅうかいのじゆう | freedom of assembly | |
| いかなる理由 | いかなるりゆう | (for) any reason | |
| カナダ自由党 | カナダじゆうとう | Liberal Party of Canada | |
| コンゴ自由国 | コンゴじゆうこく | Congo Free State (1885-1908 name of the Belgian Congo) | |
| 如何なる理由 | いかなるりゆう | (for) any reason | |
| 完全自由主義 | かんぜんじゆうしゅぎ | libertarianism | |
| 招へい理由書 | しょうへいりゆうしょ | invitation letter (e.g. document in support of a visa to enter Japan) | |
| 文脈自由文法 | ぶんみゃくじゆうぶんぽう | context-free grammar | |
| 文脈自由言語 | ぶんみゃくじゆうげんご | context-free language | |
| 新自由主義者 | しんじゆうしゅぎしゃ | neoliberal | |
| 理由をつける | りゆうをつける | to give a reason | |
| 理由を付ける | りゆうをつける | to give a reason | |
| 由緒ただしい | ゆいしょただしい | having an ancient and honorable origin; of good lineage; of noble birth | |
| 知る由もない | しるよしもない | having no way of knowing; being completely ignorant of | |
| 知る由も無い | しるよしもない | having no way of knowing; being completely ignorant of | |
| 社会自由主義 | しゃかいじゆうしゅぎ | social liberalism | |
| 秩序自由主義 | ちつじょじゆうしゅぎ | ordoliberalism | |
| 経済自由主義 | けいざいじゆうしゅぎ | economic liberalism | |
| 肢体不自由児 | したいふじゆうじ | physically disabled child; child with a physical disability | |
| 肢体不自由者 | したいふじゆうしゃ | physically disabled person; person with a physical disability | |
| 自由の女神像 | じゆうのめがみぞう | Statue of Liberty | |
| 自由主義国家 | じゆうしゅぎこっか | a free nation | |
| 自由主義神学 | じゆうしゅぎしんがく | liberal theology | |
| 自由主義経済 | じゆうしゅぎけいざい | free economy | |
| 自由国民会議 | じゆうこくみんかいぎ | Liberal National Congress (part of the LDP); JKK | |
| 自由契約選手 | じゆうけいやくせんしゅ | free agent | |
| 自由市場経済 | じゆうしじょうけいざい | free-market economy | |
| 自由心証主義 | じゆうしんしょうしゅぎ | free conviction principle; principle of the free discretion of judges as to the probative value of evidence | |
| 自由放任主義 | じゆうほうにんしゅぎ | principle of laissez-faire | |
| 自由民主主義 | じゆうみんしゅしゅぎ | liberal democracy | |
| 自由民権運動 | じゆうみんけんうんどう | Movement for Civic Rights and Freedom (Meiji period); Freedom and People's Rights Movement | |
| 自由至上主義 | じゆうしじょうしゅぎ | libertarianism | |
| 自由貿易協定 | じゆうぼうえききょうてい | Free Trade Agreement; FTA | |
| 自由貿易地域 | じゆうぼうえきちいき | free trade zone; free trade area | |
| 自由貿易帯域 | じゆうぼうえきたいいき | free trade zone; free trade area | |
| オルド自由主義 | オルドじゆうしゅぎ | ordoliberalism | |
| オレンジ自由国 | オレンジじゆうこく | Orange Free State (1854-1902) | |
| 充足理由の原理 | じゅうそくりゆうのげんり | principle of sufficient reason | |
| 動物由来感染症 | どうぶつゆらいかんせんしょう | anthropozoonosis (diseases transmitted to humans by animals) | |
| 古典的自由主義 | こてんてきじゆうしゅぎ | classical liberalism | |
| 左のような理由 | ひだりのようなりゆう | the reason(s) is (are) as follows | |
| 政治活動の自由 | せいじかつどうのじゆう | freedom to carry out political activities; freedom of political activity | |
| 自由がきかない | じゆうがきかない | restricted; confined; unfree | |
| 自由が利かない | じゆうがきかない | restricted; confined; unfree | |
| 自由が効かない | じゆうがきかない | restricted; confined; unfree | |
| 自由エネルギー | じゆうエネルギー | free energy | |
| 違法性阻却事由 | いほうせいそきゃくじゆう | justifiable cause for noncompliance with the law | |
| キリスト者の自由 | キリストしゃのじゆう | On the Freedom of a Christian (1520 treatise by Martin Luther); A Treatise on Christian Liberty | |
| 米国自由人権協会 | べいこくじゆうじんけんきょうかい | American Civil Liberties Union; ACLU | |
| 自由ソフトウェア | じゆうソフトウェア | free software (open-source software that can be used, modified, and redistributed without restriction); libre software | |
| 自由貿易帝国主義 | じゆうぼうえきていこくしゅぎ | free trade imperialism | |
| 遅かりし由良之助 | おそかりしゆらのすけ | to let a chance to do something slip through one's fingers | |
| アイルランド自由国 | アイルランドじゆうこく | Irish Free State (1922-1937) | |
| 決定的文脈自由文法 | けっていてきぶんみゃくじゆうぶんぽう | deterministic context-free grammar | |
| 国際自由労働組合連合 | こくさいじゆうろうどうくみあいれんごう | International Confederation of Free Trade Unions; ICFTU | |
| 自由権規約人権委員会 | じゆうけんきやくじんけんいいんかい | United Nations Human Rights Committee | |
| 原因において自由な行為 | げんいんにおいてじゆうなこうい | actio libera in causa; manufacturing the conditions of one's own defence (e.g. getting drunk in order to commit a crime) | |
| 権利と自由のカナダ憲章 | けんりとじゆうのカナダけんしょう | Canadian Charter of Rights and Freedoms | |
| 板垣死すとも自由は死せず | いたがきしすともじゆうはしせず | Itagaki may die, but liberty never! | |
| 自由で開かれたインド太平洋 | じゆうでひらかれたインドたいへいよう | free and open Indo-Pacific; FOIP | |