ゆする・揺するyusuru[0]heiban (flat)

1. godan verb, transitive verbto shake; to jolt; to rock (cradle); to swing
   地震じしんが大地だいちを揺ゆすった。↗

   The earthquake shook the ground.
2. godan verb, transitive verbto blackmail; to extort; to shake down

• Synonym揺さぶるゆさぶるNeutralEmphasizes shaking with force, and figuratively shaking someone up emotionally, as in 「心を揺さぶる」; stronger than 「揺する」 and wider in use.
• Synonym揺るがすゆるがすWrittenShakes something huge or undermines foundations and principles, as in 「世界を揺るがす」; grander than 「揺する」 and mostly in written/formal prose.
• Synonym揺らすゆらすNeutralA transitive verb for making an object sway, as in 「ブランコを揺らす」; its object is usually a thing, while 「揺する」 often takes a person or the body.
• SynonymシェイクCasualA colloquial loanword for shaking a container to mix its contents, as when preparing drinks; also a milkshake. Not normally used for shaking people or things.
• Synonym揺すぶるゆすぶるNeutralAlmost identical to 「揺する」: both shake a person or thing back and forth, but the feel is slightly stronger and it is used far less often.
• Synonym揺り動かすゆりうごかすNeutralShakes something to get it moving, and can also unsettle a person's heart. The longer form feels fuller and a bit more written than 「揺する」.
• Related揺らぐゆらぐNeutralIntransitive: something sways on its own, or resolve and foundations grow unsteady, as in 「決意が揺らぐ」. 「揺する」 is transitive.
• Related揺るぐゆるぐWrittenIntransitive, usually in the negative or in 「揺るぎない」, stressing unsteady foundations; mostly written/formal. 「揺する」 is transitive shaking.
• Related震動しんどうFormalFine, repeated vibration — of earthquakes, machines and the like, as in 「車体の震動」. 「揺する」 is a transitive verb for rocking a person or thing back and forth.
• Related揺れるゆれるNeutralIntransitive and the most common everyday word: something sways on its own, as in 「地震で揺れる」. It pairs with transitive 「揺する」.
• Related震わせるふるわせるNeutralMakes something quiver finely, as in 「声を震わせる」 or 「肩を震わせる」; the movement is smaller than with 「揺する」 but faster.
• Related揺動ようどうFormalA formal Sino-Japanese word for oscillation, leaning technical and mechanical; in everyday talk about shaking people or things, use 「揺する」.
• Related揺すれるゆすれるCasualIntransitive: being shaken so it sways back and forth; a colloquial word that is very rarely used. For something swaying on its own, 「揺れる」 is the everyday choice.
• Antonym固定するNeutralTo fix something in place so it cannot move — the opposite of 「揺する」, which rocks its object back and forth.
• Antonym安定させるNeutralTo make something stable and still — the opposite of 「揺する」's unsteady rocking. Also used of situations and emotions.

Use 「揺する」 for shaking a person or thing back and forth, as in 「肩を揺すって起こす」; it also means to extort. To make an object sway, 「揺らす」 is the everyday choice; to shake someone up emotionally, 「揺さぶる」; for something swaying on its own, 「揺れる」. The rest are narrower: written 「揺るがす」/「揺るぐ」, formal 「揺動」/「震動」, colloquial 「シェイク」 for mixing drinks, and antonyms 「固定する」/「安定させる」.

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

1. 揺り動ゆりうごかす。
2. 【強請ねだる】人ひとを脅おどすなどして無理むりに金品きんぴんを出ださせる。