Denshi Jisho — Online Japanese dictionary

関 せき barrier; gate
Common word, Noun, Noun suffix 
関 ぜき honorific added to names of makuuchi and juryo division sumo wrestlers
Suffix, Honorific or respectful language, Abbreviation 
関知 かんち concern; business
Common word, Noun, Suru verb 
関与 かんよ participation; taking part in; participating in; being concerned in
Common word, Noun, Suru verb 
機関 きかん 1: engine;
2: agency; organisation; organization; institution; organ; body;
3: system; facility; facilities
Common word, Noun 
大関 おおぜき sumo wrestler of second highest rank
Common word, Noun 
関係 かんけい 1: relation; relationship; connection;
2: participation; involvement; concern;
3: influence; effect;
4: () sexual relations; sexual relationship;
5: (Noun suffix) related to ...; connected to ...
Common word, Noun, Suru verb, No-adjective 
関西 かんさい Kansai (south-western half of Japan, including Osaka)
Common word, Noun 
関心 かんしん concern; interest
Common word, Noun 
関節 かんせつ joints (knee joint, elbow joint, etc.)
Common word, Noun, No-adjective 
関税 かんぜい tariff (import tax); duty; customs
Common word, Noun 
関門 かんもん barrier; gateway
Common word, Noun 
関連 かんれん relation; connection; relevance
Common word, Noun, No-adjective, Suru verb, Suffix 
玄関 げんかん entranceway; entry hall; vestibule; foyer; entryway; mud room
Common word, Noun, No-adjective 
関取 せきとり ranking sumo wrestler in the makuuchi (senior-grade) or juryo (junior-grade) divisions
Common word, Noun 
関脇 せきわけ sumo wrestler of the third highest rank
Common word, Noun 
税関 ぜいかん customs house
Common word, Noun 
相関 そうかん correlation; interrelation
Common word, Noun, Suru verb 
通関 つうかん customs clearance
Common word, Noun, Suru verb 
難関 なんかん barrier; obstacle; difficulty; hurdle; deadlock
Common word, Noun 
連関 れんかん connection; relation; linkage
Common word, Noun, Suru verb 
海関 かいかん maritime customs taxes
Noun 
関る かかわる 1: to be affected; to be influenced;
2: to be concerned with; to have to do with;
3: to stick to (opinions)
Godan verb with ru ending, Intransitive verb 
機関 からくり 1: (Usually written using kana alone) mechanism; machinery; contrivance; device;
2: (Usually written using kana alone) trick; dodge;
3: (Usually written using kana alone) (Abbreviation) mechanical doll; string puppet
Noun 
関鍵 かんけん locking doors; lock and key; vital point
Noun, Obscure term 
関数 かんすう function (e.g. math, programming, programing)
Noun, Computer terminology 

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