全身全霊(ぜんしんぜんれい)

Etymology

全(ぜん) (whole) + 身(しん) (body) + 全(ぜん) (whole) + 霊(れい) (spirit)
Literal: "whole body, whole spirit"

Common collocations

• 全身全霊(ぜんしんぜんれい)を込(こ)めて (pouring in one's whole being)
• 全身全霊(ぜんしんぜんれい)で取(と)り組(く)む (tackle wholeheartedly)
• 全身全霊(ぜんしんぜんれい)をかける (stake one's all)
• 全身全霊(ぜんしんぜんれい)を捧(ささ)げる (dedicate oneself completely)

Similar words

• 一生懸命(いっしょうけんめい) - with all one's might
• 全力(ぜんりょく)で - with full effort
• 心血(しんけつ)を注(そそ)ぐ - pour one's heart into

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Strongly emphatic and somewhat grand. It suits speeches, interviews, and written declarations of commitment; for ordinary effort in daily conversation, 一生懸命(いっしょうけんめい) is the natural choice.