| 501 | 精一杯 | seiippai | the best one can do; one’;s best effort; with all one’;s might; to the best of one’;s ability |
| 502 | 線路 | senro | railway track; railway line; railroad; railway; track; line |
| 503 | 仕上げる | shiageru | to finish up; to complete; to finish off; to get through; to polish off |
| 504 | 進入 | shinnyuu | entry; approach; penetration |
| 505 | 側面 | sokumen | side; flank; profile; sidelight; lateral; aspect; dimension |
| 506 | 総合 | sougou | synthesis; coordination; putting together; integration; composite; comprehensive |
| 507 | 住まい | sumai | dwelling; house; residence; address |
| 508 | 辿り着く | tadoritsuku | to arrive at |
| 509 | 体質 | taishitsu | constitution |
| 510 | 退職 | taishoku | retirement; resignation |
| 511 | 対等 | taitou | equality |
| 512 | 転換 | tenkan | conversion; diversion; changeover; commutation; switchover |
| 513 | 溶かす | tokasu | to dissolve; to melt |
| 514 | 取り組む | torikumu | to grapple with; to wrestle with; to engage in a bout; to be matched against; to tackle |
| 515 | 透明 | toumei | transparent; clear |
| 516 | 強火 | tsuyobi | high flame |
| 517 | 喧しい | yakamashii | noisy; loud; clamorous; boisterous; much talked of; much-discussed; vexed |
| 518 | 寄せる | yoseru | to come near; to let someone approach; to bring near; to bring together; to collect; to gather; to press; to push; to force |
| 519 | 要旨 | youshi | point; essentials; gist; summary; fundamentals |
| 520 | 郵送 | yuusou | mailing; posting |
| 521 | 溢れる | afureru | to overflow; to brim over; to flood |
| 522 | 空き地 | akichi | vacant land; unoccupied ground; empty lot |
| 523 | 仰向け | aomuke | face up |
| 524 | 洗い出す | araidasu | to reveal something by washing the surface; to bring to light; to reveal by investigation |
| 525 | 改める | aratameru | to change; to alter; to revise; to replace; to reform; to correct; to mend; to improve |
| 526 | 部員 | buin | staff; member |
| 527 | 分別 | bunbetsu | separation |
| 528 | 散らかす | chirakasu | to scatter around; to leave untidy |
| 529 | 抽象 | chuushou | abstraction |
| 530 | 段取り | dandori | programme; program; plans; arrangements |
| 531 | 土台 | dodai | foundation; base; basis |
| 532 | 独占 | dokusen | monopoly; monopolization; exclusivity; keeping to oneself |
| 533 | 複数 | fukusuu | plural; multiple; several |
| 534 | 幅広い | habahiroi | extensive; wide; broad |
| 535 | 半日 | hannichi | half day |
| 536 | 引き渡す | hikiwatasu | to deliver; to extradite; to stretch across; to hand over |
| 537 | 一人残らず | hitorinokorazu | everyone |
| 538 | 本日 | honjitsu | today |
| 539 | 表紙 | hyoushi | cover |
| 540 | 著しい | ichijirushii | striking; remarkable; considerable |
| 541 | 意欲 | iyoku | will; desire; ambition; urge |
| 542 | 事物 | jibutsu | things; affairs |
| 543 | 自体 | jitai | itself |
| 544 | 塾 | juku | coaching school; cramming school; juku |
| 545 | 順位 | jun’i | order; rank; position |
| 546 | 花粉 | kafun | pollen |
| 547 | 改良 | kairyou | improvement; reform |
| 548 | 開店 | kaiten | opening a new shop; opening a shop |
| 549 | 欠かす | kakasu | to miss |
| 550 | 下記 | kaki | the following |
