関係【かんけい】
relation, relationship, connection, participation, involvement, concern, influence, effect, sexual relations, sexual relationship, related to, connected to
関わる【かかわる】
to be affected, to be influenced, to be concerned with, to have to do with, to stick to (opinions)
無関係【むかんけい】
unrelated
機関【きかん】
engine, agency, organisation, organization, institution, organ, body, system, facility, facilities
関心【かんしん】
concern, interest
関連【かんれん】
relation, connection, relevance
玄関【げんかん】
entrance, front door, entryway, entranceway, entry hall, vestibule, porch, foyer, mud room
に関して【にかんして】
related to, in relation to, as far as ... is concerned
関係者【かんけいしゃ】
person concerned, people involved (in an event), those concerned, staff
関与【かんよ】
participation, taking part in, participating in, being concerned in
関東【かんとう】
Kantō, region consisting of Tokyo and surrounding prefectures, Kantō, north-eastern half of Japan (during the feudal era)
関税【かんぜい】
tariff (import tax), duty, customs
税関【ぜいかん】
customs, customs house
関節【かんせつ】
joint (knee, elbow, etc.)
難関【なんかん】
barrier, obstacle, difficulty, hurdle, deadlock
無関心【むかんしん】
apathetic, indifferent, nonchalant, callous
関門【かんもん】
barrier, checkpoint, gateway, hurdle, obstacle, trial
関西【かんさい】
Kansai, region consisting of Osaka, Kobe, Kyoto and surrounding prefectures, Kansai, south-western half of Japan (during the feudal era)
機関車【きかんしゃ】
locomotive, engine
相関【そうかん】
correlation, interrelation