累るい進しん

noun, noun or participle which takes 'suru', intransitive verb

successive promotion; gradual progression; rising step by step

Used for career advancement through ranks, or for things increasing in stages. Often appears in contexts like 累進課税 (progressive taxation) or 累進制度 (promotion system).

• 彼かれは実じつ力りょくで課か長ちょうから部ぶ長ちょうへと累るい進しんした。

  He rose step by step from section chief to department head through his ability.

• この会かい社しゃでは、勤きん続ぞく年ねん数すうに応おうじて累るい進しんする制せい度どがある。

  This company has a system of gradual promotion based on years of service.

noun, noun or participle which takes 'suru', intransitive verb

progressive (tax, rates, etc.)

Specifically for systems where rates or amounts increase as the base amount increases, most commonly in taxation.

• 所しょ得とく税ぜいは累るい進しん課か税ぜいが採さい用ようされている。

  Income tax adopts a progressive taxation system.