変化|へんかhenka[1]atamadaka (head-high)

1. noun, suru verb, intransitive verbchange; variation; alteration; mutation; transition; transformation
   このような接し方せっしかたの変化へんかは、他たの変化へんかもそうであるが、他たの国くににおいても起おこっている。↗

   Like other changes, this change in attitude has occurred in other countries, too.
2. nounvariety; diversity
   この辺へんの山々やまやまは変化へんかに富とんでいる。↗

   The mountains in this part of the country are full of variety.
3. noun, suru verb, intransitive verb, grammarinflection; declension; conjugation
   この動詞どうしの変化へんかを言いえますか。↗

   Can you conjugate this verb?
4. noun, suru verb, intransitive verb, sumohenka; evasive sidestep at the beginning of a bout

• Synonym変わりかわりNeutralCovers change or something unusual; common in greetings like 「お変わりありませんか」. More colloquial than 「変化」.
• Synonym変動へんどうNeutralRefers to movement in states, figures or situations, as in 「株価の変動」「気候変動」; usually larger, dynamic shifts, while 「変化」 is broader.
• Synonym移り変わりうつりかわりNeutralChanges that unfold over time, as in 「季節の移り変わり」; stresses gradual succession rather than a single change.
• Synonym変移へんいWrittenWritten word for transition or passage; rare in practice — say 「変化」 or 「変遷」 in everyday use.
• Synonym変遷へんせんWrittenWritten word for long-term historical change, as in 「時代の変遷」; spans long periods, while 「変化」 is not limited by timescale.
• Synonym変転へんてんWrittenWritten word for rapid, drastic shifts in a situation, as in 「変転極まりない」; stresses frequent, intense change.
• Synonym変わるかわるNeutralNative verb and the most common way to say something changes, as in 「天気が変わる」; 「変化」 is a Sino-Japanese noun, takes 「する」, and is more formal.
• Synonym変更へんこうNeutralTransitive: deliberately altering plans or settings, as in 「予定を変更する」; 「変化」 focuses on the change itself, whatever its cause.
• Synonym変形へんけいNeutralChange in shape, structure or state, as in 「熱で変形する」; focuses on form, while 「変化」 also covers quality, quantity and more.
• Synonym変容へんようWrittenWritten word for an overall change in appearance or character, as in 「都市の変容」; mostly for abstract things like society and culture.
• Synonym変質へんしつNeutralChange in quality or nature, as in 「食品が変質する」; often implies deterioration, and can also mean a warped personality.
• Synonym転換てんかんNeutralA switch in policy or direction, as in 「方針転換」「気分転換」; stresses changing course rather than changing itself.
• Synonym移行いこうNeutralTransition from one state to another, as in 「新制度への移行」; mostly for moving over to new systems or institutions.
• Synonym変革へんかくWrittenWritten word for fundamental change to institutions or society, as in 「社会の変革」; large in scale, with a sense of reform.
• Synonym移りうつりWrittenWritten word for shifting or change; also a small gift returned with a borrowed item. Rarely used alone — say 「移り変わり」 or 「変化」.
• Synonym推移すいいWrittenWritten word for how a situation develops over time, as in 「人口の推移」; mostly for observing data trends.
• Synonym転移てんいNeutralMovement or transfer; in medicine the spread of cancer, in physics a phase transition. Mostly a specialist term.
• Synonym改変かいへんWrittenWritten word for altering content so it differs from the original, as in 「規約の改変」「データ改変」; a deliberate human change.
• Synonym変異へんいWrittenWritten word for variation or mutation between individuals, as in 「突然変異」; mostly biological, also an unusual event.
• SynonymチェンジNeutralLoanword for changing or swapping, as in 「イメージチェンジ」; colloquial, mostly in compounds or for switching sides in baseball.
• Synonym遷移せんいWrittenShift from one state to another, mostly in science and IT, e.g. 「画面遷移」「植生の遷移」; a technical, written-style term.
• Synonym転変てんぺんWrittenWritten word for the vicissitudes of life, seen mainly in 「有為転変」; not used alone in everyday speech.
• Synonym移ろいうつろいWrittenLiterary word for slow change or fading, as in 「季節の移ろい」; carries a wistful, poetic nuance.
• Antonym不変ふへんWrittenAntonym: unchanging through the ages, as in 「不変の真理」; a formal, written-style opposite of 「変化」.
• Antonym静止せいしNeutralAntonym: standing still, not moving; contrasts with 「変化」 in the sense of motion and change.

For change in general, use 「変化」, or the verb 「変わる」. For deliberate changes to plans or settings, say 「変更」; for movements in states, figures or situations, 「変動」; for long-term change over time, 「変遷」 or 「移り変わり」; for fundamental reform of society or institutions, 「変革」. The rest are narrower — shape (「変形」), direction (「転換」), quality (「変質」) — or written and technical terms best left to their own fields.

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

1. ある人ひとやものが持もっている形状けいじょうや特徴とくちょう、また占しめている位置いちなどが、2時じ点てんを比較ひかくしたときに、同一どういつでなくなっていること。
2. 格かくや数かず、性せい、また音おん環境かんきょうなどによって語形ごけいを変かえること。格変化かくへんか、語形ごけい変化へんか、曲きょく用よう。
3. 立合たちあいで、相手あいてと正面しょうめんからぶつからず右みぎまたは左ひだりによけること。注文ちゅうもん。
4. 定跡じょうせきと異ことなる手て。
5. 考かんがえられうる手順てじゅん。