| 関係 | かんけい | relation; relationship; connection; participation | n4 |
| 関連 | かんれん | relation; connection; relevance | n2 |
| 玄関 | げんかん | entrance; front door; entryway; entranceway | n5 |
| 機関 | きかん | engine; agency; organisation; organization | n3 |
| 関心 | かんしん | concern; interest | n3 |
| 関東 | かんとう | Kantō (region comprising Tokyo and surrounding prefectures); Kantō (eastern half of Japan; during the feudal era) | |
| 関 | せき | barrier; gate; seki; mutual life | n4 |
| 関西 | かんさい | Kansai (region comprising Kyoto, Osaka, Kobe and surrounding prefectures); Kansai (western half of Japan; during the feudal era) | n1 |
| 関わる | かかわる | to be involved (in); to get involved (in); to concern oneself (with); to take part (in) | n3 |
| 無関係 | むかんけい | unrelated | n2 |
| に関して | にかんして | regarding ...; concerning ...; about ...; on ... | |
| 関節 | かんせつ | joint | n1 |
| 関聯 | かんれん | relation; connection; relevance | n2 |
| 関所 | せきしょ | barrier; checkpoint; checking station | |
| 関与 | かんよ | participation; taking part in; participating in; being concerned in | |
| 関係者 | かんけいしゃ | person concerned; people involved (in an event); those concerned; staff | |
| 無関心 | むかんしん | apathetic; indifferent; nonchalant; callous | n1 |
| 難関 | なんかん | barrier; obstacle; difficulty; hurdle | n1 |
| 関門 | かんもん | barrier; checkpoint; gateway; hurdle | |
| 関わり | かかわり | relation; connection | n2 |
| 連関 | れんかん | connection; relation; linkage | n1 |
| 機関車 | きかんしゃ | locomotive; engine | n1 |
| 関税 | かんぜい | customs (duties); duty; tariff | |
| 関する | かんする | to concern; to be related | n3 |
| 大関 | おおぜき | ōzeki (second highest rank in sumo) | |
| 関の山 | せきのやま | the most one can do; the best one can do; the best one can expect | |
| 関係性 | かんけいせい | relationship; relation | |
| 関白 | かんぱく | chief advisor to the Emperor (adviser) | |
| 関ヶ原 | せきがはら | Sekigahara (battle site, 1600); decisive battle; critical battle | |
| 相関 | そうかん | correlation; interrelation | n2 |
| 税関 | ぜいかん | customs; customs house | n1 |
| 関東大震災 | かんとうだいしんさい | Great Kanto earthquake (1923) | |
| 玄関番 | げんかんばん | doorkeeper; doorman; porter | |
| 関取 | せきとり | ranking wrestler in the makuuchi (senior-grade) or juryo (junior-grade) divisions | |
| 関連記事 | かんれんきじ | related article; related story | |
| 表玄関 | おもてげんかん | front door; vestibule | |
| 関数 | かんすう | function; function (programming) | |
| 内玄関 | うちげんかん | side entrance | |
| 関守 | せきもり | barrier keeper | |
| 関節技 | かんせつわざ | joint-locking technique (in judo) | |
| 聯関 | れんかん | connection; relation; linkage | n1 |
| 関知 | かんち | (one's) concern; having (something) to do with | n1 |
| 関心事 | かんしんじ | matter of concern; matter of interest | |
| 関連性 | かんれんせい | relatedness; associativity; relation; relationship | |
| 霞ヶ関 | かすみがせき | Kasumigaseki; district of Tokyo where most of Japan's government ministry offices are located; government ministries (of Japan); Japanese government bureaucracy | |
| 関連語 | かんれんご | related term; associated words | |
| 霞が関 | かすみがせき | Kasumigaseki; district of Tokyo where most of Japan's government ministry offices are located; government ministries (of Japan); Japanese government bureaucracy | |
| 股関節 | こかんせつ | hip joint; coxa | |
| 関東軍 | かんとうぐん | Kwantung Army (Japanese armed forces in Manchukuo) | |
| 関連項目 | かんれんこうもく | related item; related topic | |
| に関し | にかんし | related to; in relation to | |
| 機関誌 | きかんし | bulletin; (party) organ | |
| 玄関払い | げんかんばらい | refusing to see a visitor | |
| 関脇 | せきわけ | wrestler of the third highest rank | |
| 人間関係 | にんげんかんけい | human relations; personal relationships | n3 |
| 玄関口 | げんかんぐち | entrance door; front door; gateway (to a region, etc.) | |
| 関門海峡 | かんもんかいきょう | Kanmon Straits (between Honshu and Kyushu) | |
| 郷関 | きょうかん | one's hometown | n2 |
| 関ケ原 | せきがはら | Sekigahara (battle site, 1600); decisive battle; critical battle | |
| 関所破り | せきしょやぶり | breaking through a checkpoint (Edo period); sneaking past a barrier | |
| 関連付ける | かんれんづける | to connect; to correlate; to associate; to relate | |
| 摂関 | せっかん | regents and advisers (advisors) | |
| 関頭 | かんとう | critical moment; crucial point; crossroads | |
| 相関図 | そうかんず | correlation diagram; correlation chart; relationship chart (of characters in a televised drama, etc.) | |
| 玄関先 | げんかんさき | entrance; front door | |
| 信頼関係 | しんらいかんけい | relationship of mutual trust; fiduciary relation | |
| 関西大学 | かんさいだいがく | Kansai University | |
| 関西学院大学 | かんせいがくいんだいがく | Kwansei Gakuin University | |
| 関西圏 | かんさいけん | Kansai area; Kansai region | |
| 関節炎 | かんせつえん | arthritis | |
| 亭主関白 | ていしゅかんぱく | domineering husband; hectoring husband; husband who rules the roost | |
| 関連情報 | かんれんじょうほう | related information; relevant information | |
| 通関 | つうかん | customs clearance | n1 |
| 機関紙 | きかんし | bulletin; (party) organ | |
| 関西人 | かんさいじん | person from the Kansai region; Kansai native | |
| 難関大 | なんかんだい | highly selective university; university with high entry requirements; elite university | |
| 関連づける | かんれんづける | to connect; to correlate; to associate; to relate | |
| 関東圏 | かんとうけん | Kantō area; Kantō region | |
| 関節痛 | かんせつつう | arthralgia; joint pain | |
| 関西弁 | かんさいべん | Kansai dialect | |
| 関西辯 | かんさいべん | Kansai dialect | |
| 関西電力 | かんさいでんりょく | Kansai Electric Power; KEPCO | |
| 関係付ける | かんけいづける | to relate to; to connect with | |
| 関係調 | かんけいちょう | relative key | |
| 関大 | かんだい | Kansai University (abbr) | n1 |
| 覗機関 | のぞきからくり | peep show; device with lens mounted on a stand or in a box to view enlarged pictures | |
| 相関性 | そうかんせい | relativity; interconnectedness; correlation | |
| 相関的 | そうかんてき | correlative | |
| 関係式 | かんけいしき | relational expression | |
| 難関校 | なんかんこう | hard-to-get-into school; elite school; highly-selective school | |
| 霞ケ関 | かすみがせき | Kasumigaseki; district of Tokyo where most of Japan's government ministry offices are located; government ministries (of Japan); Japanese government bureaucracy | |
| 協力関係 | きょうりょくかんけい | cooperative relation; cooperative relationship; collaborative relationships; cooperative structure | |
| 恋愛関係 | れんあいかんけい | love affair; love relationship | |
| 研究機関 | けんきゅうきかん | research institution | |
| 関連商品 | かんれんしょうひん | related product | |
| 多関節 | たかんせつ | multiple joints; multijoint; articulated | |
| 機関士 | きかんし | engineer (on a train, ship, aircraft, etc.) | |
| 上下関係 | じょうげかんけい | pecking order; hierarchical relationship; vertical relationship; hyponymy | |
| 外交関係 | がいこうかんけい | diplomatic relations | |
| 家族関係 | かぞくかんけい | family relationships; one's relationship with one's family | |