| 奥 | おく | inner part; interior; back (of a drawer, one's throat, etc.); depths (e.g. of a forest) | n4 |
| 奥さん | おくさん | wife; your wife; his wife; married lady | n5 |
| 奥深い | おくふかい | profound; deep; deep (of a cave, etc.); innermost | n2 |
| 奥様 | おくさま | wife; your wife; his wife; married lady | n3 |
| 山奥 | やまおく | deep in the mountains; mountain recesses | n1 |
| 奥底 | おくそこ | depths; deep place; bottom (of one's heart) | n2 |
| 奥州 | おうしゅう | Ōshū (alternative name of the former Mutsu province) | n1 |
| 奥方 | おくがた | lady; nobleman's wife | |
| 奥まる | おくまる | to lie deep in; to extend far back | |
| 奥さま | おくさま | wife; your wife; his wife; married lady | n3 |
| 奥山 | おくやま | remote mountain; mountain recesses | |
| 奥行 | おくゆき | depth; length | n1 |
| 陸奥 | むつ | Mutsu (former province located in present-day Fukushima, Miyagi, Iwate, and Aomori prefectures) | |
| 奥歯 | おくば | back tooth; molar | |
| 奥羽 | おうう | Ōu (the two former provinces of Mutsu and Dewa); Tōhoku | |
| 奥地 | おくち | interior; backwoods; hinterland; back regions | |
| 奥行き | おくゆき | depth; length | n1 |
| 奥義 | おうぎ | secret techniques (of an art or skill); inner mysteries; essence; quintessence | |
| 奥床しい | おくゆかしい | refined; elegant; graceful; cultivated | |
| 大奥 | おおおく | inner palace (in Edo Castle); palace's ladies chambers; shogun's harem | |
| 深奥 | しんおう | depths (of an art, one's mind, etc.); heart; inner mysteries; profound | |
| 奥の手 | おくのて | ace up one's sleeve; trump card; last resort; secret skills | |
| 内奥 | ないおう | recesses (of one's mind, heart, etc.); depths; innermost parts | |
| 奥の院 | おくのいん | inner sanctuary; inner shrine; sanctum sanctorum; holy of holies | |
| 奥ゆかしい | おくゆかしい | refined; elegant; graceful; cultivated | |
| 秘奥 | ひおう | secrets; mysteries | |
| 奥深さ | おくふかさ | depth; profundity | |
| 奥書 | おくがき | postscript (to a book); verification; publication (in a book) | |
| 最奥 | さいおう | deep inside; innermost place | |
| 奥付 | おくづけ | colophon (at the end of a book); imprint; publication information | |
| 蘊奥 | うんのう | inner mysteries (of a field of study); secrets | |
| 奥津城 | おくつき | family grave; ancestral grave; tomb | |
| 奥手 | おくて | late-growing rice; late-ripening crops; late-blooming flowers; late developer (e.g. child who reaches puberty late) | |
| 胸奥 | きょうおう | one's heart of hearts; the depths of one's mind | |
| 奥伝 | おくでん | (admission to the) secrets of a discipline; esoterics of a discipline | |
| 奥宮 | おくみや | rear shrine (located behind the main shrine, but dedicated to the same deity) | |
| 奥社 | おくしゃ | rear shrine (located behind the main shrine, but dedicated to the same deity) | |
| 中奥 | なかおく | area of the Edo castle where the shogun would work and spend his daily life | |
| 奥許し | おくゆるし | secret; initiation; diploma | |
| 堂奥 | どうおう | secret knowledge; interior of a temple | |
| 奥女中 | おくじょちゅう | maid working in the domestic quarters of a shogun or daimyo (Edo period) | |
| 奥義書 | おうぎしょ | esoteric writings; Upanishad (sacred Hindu treatises) | |
| 奥ふかい | おくふかい | profound; deep; deep (of a cave, etc.); innermost | n2 |
| 奥ぶかい | おくふかい | profound; deep; deep (of a cave, etc.); innermost | n2 |
| 右奥 | みぎおく | rear right (corner, etc.); on the right and at the end; right-hand side and at the back | |
| 奥儀 | おうぎ | secret techniques (of an art or skill); inner mysteries; essence; quintessence | |
| 奥印 | おくいん | official seal | |
| 奥壁 | おくへき | inner wall (e.g. cave); inner rockface (mountain valley, etc.) | |
| 奥妙 | おうみょう | secret | |
| 奥庭 | おくにわ | inner garden; back yard | |
| 奥意 | おくい | true intention | |
| 奥技 | おうぎ | secret techniques (of an art or skill); inner mysteries; essence; quintessence | |
| 奥旨 | おうし | deep truth; deep knowledge | |
| 奥附 | おくづけ | colophon (at the end of a book); imprint; publication information | |
| 左奥 | ひだりおく | left back (corner, etc.); on the left and at the rear; left-hand side and at the back | |
| 大奥様 | おおおくさま | lady of the house | |
| 奥つ城 | おくつき | family grave; ancestral grave; tomb | |
| 奥の間 | おくのま | inner room | |
| 奥上臈 | おくじょうろう | maid working in the domestic quarters of a shogun or daimyo (Edo period) | |
| 奥之院 | おくのいん | inner sanctuary; inner shrine; sanctum sanctorum; holy of holies | |
| 奥二重 | おくぶたえ | hidden double eyelid | |
| 奥付け | おくづけ | colophon (at the end of a book); imprint; publication information | |
| 奥勤め | おくづとめ | working as a lady's maid | |
| 奥医師 | おくいし | court physician (of the Shōgun and his household, Edo period) | |
| 奥向き | おくむき | inner part of a house (near the kitchen, living room, etc.); family matters; household affairs; personal business | |
| 奥座敷 | おくざしき | inner parlor; inner parlour; salon; living room | |
| 奥御殿 | おくごてん | noble's private quarters | |
| 奥書き | おくがき | postscript (to a book); verification; publication (in a book) | |
| 奥村組 | おくむらぐみ | Okumura Corporation | |
| 奥都城 | おくつき | family grave; ancestral grave; tomb | |
| 奥陶紀 | おうとうき | Ordovician period | |
| 心の奥 | こころのおく | inner heart | |
| 森の奥 | もりのおく | deep in the forest | |
| 若奥様 | わかおくさま | young wife; young married woman | |
| 陸奥丸 | むつまる | Mutsumaru | |
| 奥が深い | おくがふかい | profound; deep | |
| 奥つ城所 | おくつきどころ | graveyard; cemetery | |
| 奥の深い | おくのふかい | deep; profound; complicated; advanced | |
| 奥の細道 | おくのほそみち | The Narrow Road to the Deep North (chronicle by Matsuo Basho, published in 1702) | |
| 奥まって | おくまって | secluded; innermost | |
| 奥山放獣 | おくやまほうじゅう | relocation of wild animals to a remote location | |
| 奥義秘伝 | おうぎひでん | secrets; mysteries; secret formula; essence | |
| 奥羽大学 | おううだいがく | Ohu University | |
| 奥行知覚 | おくゆきちかく | depth perception | |
| 心の奥底 | こころのおくそこ | innermost depths of one's heart | |
| 若奥さま | わかおくさま | young wife; young married woman | |
| 奥がふかい | おくがふかい | profound; deep | |
| 奥さん孝行 | おくさんこうこう | devotion to one's wife; doing things for one's wife | |
| 奥のほそ道 | おくのほそみち | The Narrow Road to the Deep North (chronicle by Matsuo Basho, published in 1702) | |
| 奥行き知覚 | おくゆきちかく | depth perception | |
| 奥行き表現 | おくゆきひょうげん | depth cueing | |
| 奥の手を使う | おくのてをつかう | to play one's trump card | |
| 蘊奥を極める | うんのうをきわめる | to master the secrets of | |
| 蘊奥を究める | うんのうをきわめる | to master the secrets of | |
| クレーブの奥方 | クレーブのおくがた | La Princesse de Clèves (1678 novel by Madame de La Fayette) | |
| クレーヴの奥方 | クレーヴのおくがた | La Princesse de Clèves (1678 novel by Madame de La Fayette) | |
| 奥歯に物が挟まる | おくばにものがはさまる | to beat around the bush; to not speak frankly; to talk in a roundabout way | |
| 奥行き表現モード | おくゆきひょうげんモード | depth cue mode | |
| 奥行き表現定義表 | おくゆきひょうげんていぎひょう | depth cue table | |
| 奥歯にものが挟まる | おくばにものがはさまる | to beat around the bush; to not speak frankly; to talk in a roundabout way | |