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やくだつ
Meanings
Verb (5-dan, つ, intransitive)
1. to be useful; to be helpful; to serve the purpose
Alt. forms
役やく立だつ
96%
役やくだつ
3%
やくだつ
Pitch accent
や
くだ
つ
Conjugations...Used in: 8
Composed of
① 古代国家～近世までの政府(官)から課される労働。公役、夫役。② 全体の中で、割り当てられ受け持つ仕事。果す任務。役目・役割。 (当番から名誉職、一定の公職・職位にまで使われる。)③ 責任のある、重要な職務・地位。主だった立場の仕事。(広く社会的な全体の中での役と、組織の中の役の両方に使うので、語義2との区別は曖昧)④ 賭け事のゲーム(花札・トランプ・麻雀、など)で、決まった条件が揃って「勝てる・上がれる」状態。上がり役。⑤ の略。月経のこと。⑥ 戦役、特に内戦。徴兵の意味もある。反乱を起こす側からは、乱（応仁の乱など）。
Examples (27 in total)
Mutual understanding makes for peace.
I think this information will help.
His advice was very helpful.
Words serve to express ideas.
Refrigerators help to preserve food.
Sports help to develop our muscles.
Soap helps remove the dirt.
This robot was useful for accomplishing many tasks.
Defensive driving can help you avoid accidents.
It is doubtful whether this method will work.
Salt prevents food from perishing.
This dictionary has been of great use to me.
I think that this material is of benefit to everyone.
Music and art can greatly contribute to the enjoyment of life.
Clear foresight contributed greatly to his success.
This is a good exercise to help you lose weight.
A map helps us to know where we are.
Moderate exercise in the evening helps induce sleep.
Reading literary criticism is very helpful to understanding literature.
Having a telephone helped her find more clients.
This book is much more useful than that one.
I hope this treaty will contribute to peace in the world.
We all hope that this cease-fire will make for world peace.
The data in her paper serves to further our purpose.
During warm weather, sweating helps man regulate his body temperature.
Tom is useless!
There are 5 computers in the house, but 2 of them are useless.