How to say "preservation" in Japanese

Choosing the right word
  • 保存ほぞんJLPT N3approx.Common
    noun, suru verb, transitive verbThe most general word for preservation: keeping something from being lost, damaged, spoiled, or altered — documents, food, digital data — and it also covers saving or storing files.
    私達わたしたちは田舎いなかの美うつくしさを保存ほぞんするべきだ。↗
    We should preserve the beauties of the countryside.
  • 維持いじJLPT N3approx.Common
    noun, suru verb, transitive verbCovers preservation as keeping something in its existing state — maintaining order, health, or standards; for preserving objects or records from decay it is not the word you want.
    この車くるまの維持いじは高たかくつく。↗
    It is expensive running this car.
  • 保全ほぜんCommon
    noun, suru verb, transitive verbPreservation as active safeguarding of something valuable — conservation of the natural environment, maintenance of safety, or the integrity of data; the emphasis is on protecting something from threats rather than simply keeping it.
    この地域ちいきは保全ほぜん地域ちいきに指定していされています。↗
    This has been designated a conservation area.
  • 温存おんぞんCommon
    noun, suru verb, transitive verbPreservation in the sense of keeping something unused and in reserve — conserving one's strength, funds, or resources for later; not the word for preserving objects, buildings, or records.
  • 保持ほじCommon
    noun, suru verb, transitive verbPreservation as continued retention: holding on to a record, a title, a quality, or balance over time; closer to retention and maintenance than to protecting something from harm.
    To get technical information from that company, we first have to sign a non-disclosure agreement.

Choose 保存 for general keeping or saving of things and data, 維持 for sustaining a state, 保全 for safeguarding nature, safety or data, 温存 for keeping resources in reserve, and 保持 for retaining records, titles or qualities.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

Japanese equivalents
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JLPT vocabulary levels are community estimates, not official (no official lists have been published since the 2010 revision).

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