関
| Level 4 vocabulary | ||
| 玄関 | (n) entranceway/ entry hall/ (P) | |
| Level 3 vocabulary | ||
| 関係 | (n,vs) relation/ connection/ (P) | |
| Level 2 vocabulary | ||
| 関西 | Kansai (south-western half of Japan, including Osaka)/ (P) | |
| 関心 | (n) concern/ interest/ (P) | |
| 関する | (vs-s) to concern/ to be related/ (P) | |
| 関東 | Kantou (eastern half of Japan, including Tokyo)/ (P) | |
| 関連 | (n) relation/ connection/ relevance/ (P) | |
| 機関 | (n) organ/ mechanism/ facility/ engine/ (P) | |
| 機関車 | (n) locomotive/ engine/ (P) | |
| 交通機関 | (n) transportation facilities | |
| 税関 | (n) customs house/ (P) | |
| Level 1 vocabulary | ||
| 関税 | (n) customs/ duty/ tariff/ (P) | |
| 関与 | (n,vs) participation/ taking part in/ participating in/ being concerned in/ (P) | |