| 入る | いる | to enter; to go in; to get in; to come in | n5 |
| 入れる | いれる | to put in; to let in; to take in; to bring in | n5 |
| 入口 | いりぐち | entrance; entry; gate; approach | n4 |
| 購入 | こうにゅう | purchase; buying | n2 |
| 気に入る | きにいる | to like; to be pleased with; to be delighted with; to take a liking to | n4 |
| 這入る | はいる | to enter; to come in; to go in; to get in | n5 |
| 出入り | でいり | going in and out; entering and exiting; visiting regularly; frequenting | n3 |
| 入 | いり | entering; entrance; entry; attendance | |
| 導入 | どうにゅう | introduction; bringing in; installation; setting up | n2 |
| 収入 | しゅうにゅう | income; earnings; revenue; proceeds | n3 |
| 出入 | しゅつにゅう | in and out; income and expenses; free associations; run of the house | |
| 取り入れる | とりいれる | to take in; to gather in; to adopt (e.g. an idea); to accept (e.g. advice) | n2 |
| 見入る | みいる | to gaze (at); to stare intently (at); to look fixedly (at); to fix one's eyes (on) | n1 |
| 入学 | にゅうがく | admission (to a school or university); entrance; enrolment; enrollment | n4 |
| 恐れ入る | おそれいる | to be sorry; to beg someone's pardon; to feel small; to be much obliged | n1 |
| 入門 | にゅうもん | becoming a pupil (of); becoming a disciple; entering an institution; beginning training | n3 |
| 入り込む | はいりこむ | to go into; to come into; to penetrate; to get in | n2 |
| 輸入 | ゆにゅう | import; importation; introduction; afferent | n4 |
| 念入り | ねんいり | careful; scrupulous; thorough; conscientious | n1 |
| 手入れ | ていれ | care; looking after; repair; maintenance | n2 |
| 侵入 | しんにゅう | invasion; incursion; raid; aggression | n2 |
| 入居 | にゅうきょ | moving in (to a house, apartment, etc.); taking up residence | n2 |
| お気に入り | おきにいり | favorite; favourite; pet (e.g. teacher's pet); bookmark (in a web browser) | n2 |
| 入院 | にゅういん | hospitalization; hospitalisation | n4 |
| 入用 | いりよう | need; want; necessity; costs | |
| 入手 | にゅうしゅ | acquisition; obtaining; procurement; getting (hold of) | n2 |
| 入力 | にゅうりょく | input; (data) entry; typing | n3 |
| 入浴 | にゅうよく | bathing; going in the bath | n1 |
| 受け入れる | うけいれる | to accept; to receive; to agree | n3 |
| 寝入る | ねいる | to fall asleep; to sleep soundly; to become dull; to lose vigour | |
| 押入 | おしいれ | closet (built into the wall, usu. with sliding doors); (built-in) wardrobe | n3 |
| 入会 | にゅうかい | admission (to a society, club, etc.); joining; entrance; enrollment | n2 |
| 入場 | にゅうじょう | entrance; entering; admission; admittance | n2 |
| 立ち入る | たちいる | to enter; to go into; to trespass (on); to meddle (in) | n1 |
| 加入 | かにゅう | joining (a club, organization, etc.); becoming a member; entry; admission | n1 |
| 編入 | へんにゅう | admission; incorporation; enlistment; enrollment | |
| 入り乱れる | いりみだれる | to be jumbled together | |
| 入り口 | いりぐち | entrance; entry; gate; approach | n4 |
| 引き入れる | ひきいれる | to drag into; to pull into; to draw into; to lure inside | |
| 押入る | おしいる | to push in; to force into; to break in (e.g. into a house); to intrude | |
| 記入 | きにゅう | entry (in a form, register, diary, etc.); filling in; filling out | n3 |
| 入江 | いりえ | inlet; cove; creek; bay | |
| 入試 | にゅうし | entrance examination | n3 |
| 入りこむ | はいりこむ | to go into; to come into; to penetrate; to get in | n2 |
| 入道 | にゅうどう | entering the priesthood; priest; monk; man with a shaven head | |
| 滅入る | めいる | to feel depressed | |
| 仲間入り | なかまいり | joining (a group); becoming a member (of); joining the ranks (of) | n1 |
| 突入 | とつにゅう | rushing into; breaking into; storming; plunging into (war, etc.) | n1 |
| 出入口 | でいりぐち | exit and entrance | n3 |
| 深入り | ふかいり | getting deeply involved; going deeply into; going too far (into something) | |
| 踏み入れる | ふみいれる | to walk in on; to tread upon | n1 |
| 闖入 | ちんにゅう | intrusion; forced entry | |
| 嫁入り | よめいり | marriage; wedding | |
| 引入れる | ひきいれる | to drag into; to pull into; to draw into; to lure inside | |
| 仕入れる | しいれる | to buy (stock, materials, etc.); to purchase; to lay in; to stock | n1 |
| 取り入る | とりいる | to curry favour (with); to play up (to); to cozy up (to); to butter up | |
| 投げ入れる | なげいれる | to throw into; to dump in together | |
| 立入る | たちいる | to enter; to go into; to trespass (on); to meddle (in) | n1 |
| 挿入 | そうにゅう | insertion; interposition; interpolation; infixing | n1 |
| 插入 | そうにゅう | insertion; interposition; interpolation; infixing | n1 |
| 聞き入る | ききいる | to listen attentively to; to be absorbed in (listening to) | |
| 没入 | ぼつにゅう | being absorbed (in); immersion; sinking (into) | n1 |
| 入念 | にゅうねん | careful; elaborate; scrupulous | n1 |
| 先入 | せんにゅう | preconception; prejudice | |
| 入居者 | にゅうきょしゃ | tenant (esp. of an apartment); occupant; resident (e.g. of a nursing home) | |
| 潜入 | せんにゅう | infiltration; sneaking in; going undercover | |
| 入社 | にゅうしゃ | joining a company; getting a job with a company; starting work at a company | n3 |
| 聞き入れる | ききいれる | to grant (a wish); to accede; to comply with; to heed | |
| とり入れる | とりいれる | to take in; to gather in; to adopt (e.g. an idea); to accept (e.g. advice) | n2 |
| 書き入れる | かきいれる | to write in | n1 |
| 入札 | にゅうさつ | bid; tender; bidding | |
| 投入 | とうにゅう | throwing in; inserting; depositing (e.g. a ballot); investment | n1 |
| 取入れる | とりいれる | to take in; to gather in; to adopt (e.g. an idea); to accept (e.g. advice) | n2 |
| 入日 | いりひ | setting sun; evening sun | |
| 混入 | こんにゅう | mixing; blending; adding; adulteration | n1 |
| 入り | いり | entering; entrance; entry; attendance | |
| 入費 | にゅうひ | expenses | |
| 呼び入れる | よびいれる | to call in; to invite; to bring in | |
| 一入 | ひとしお | still more; especially | |
| 悦に入る | えつにいる | to be pleased; to gloat; to glow with self-satisfaction | |
| 食い入る | くいいる | to eat into | |
| 聴き入る | ききいる | to listen attentively to; to be absorbed in (listening to) | |
| 注入 | ちゅうにゅう | pouring; injection | |
| 迎え入れる | むかえいれる | to show in; to usher in | |
| 紙入れ | かみいれ | wallet; billfold; purse; handbag | |
| 申し入れる | もうしいれる | to propose; to suggest | |
| 受け入れ | うけいれ | receiving; acceptance; reception; admission | n3 |
| 込み入る | こみいる | to be complicated; to be elaborate; to push in; to be crowded | n2 |
| 買入れる | かいいれる | to purchase; to buy in | |
| 乱入 | らんにゅう | intrusion; bursting into; barging into; breaking into | |
| 踏み入る | ふみいる | to step into; to enter | |
| 仕入れ | しいれ | buying (of stock, materials, etc.); purchasing; stocking; laying in | n2 |
| 流入 | りゅうにゅう | inflow; influx | n1 |
| 参入 | さんにゅう | entering (the marketplace); introducing (something) to the market; access; visiting a high-class or noble individual | |
| 移入 | いにゅう | introduction (from outside); import; bringing in; shipping in (from another part of the country) | |
| 大入道 | おおにゅうどう | large, bald-headed monster; giant; large, bald man; big baldy | |
| 入来 | にゅうらい | august visit; arrival | |
| 感じ入る | かんじいる | to be deeply impressed (by); to be moved (by); to admire greatly | |
| 消え入る | きえいる | to vanish gradually (e.g. of a voice); to trail off; to die away; to dwindle | |
| 水入らず | みずいらず | (being) among close family or friends only; private (gathering of intimates) | |