| curb | (verb) place restrictions on | Synonyms: curtail, cut back, restrict |
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| (verb) keep to the curb | - |
| (verb) lessen the intensity of; temper; hold in restraint; hold or keep within limits | Synonyms: check, contain, control, hold, hold in, moderate |
| disturb | (verb) destroy the peace or tranquility of | Synonyms: interrupt |
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| (verb) damage as if by shaking or jarring | - |
| (verb) tamper with | Synonyms: touch |
| (verb) change the arrangement or position of | Synonyms: agitate, commove, raise up, shake up, stir up, vex |
| (verb) move deeply | Synonyms: trouble, upset |
| perturb | (verb) throw into great confusion or disorder | Synonyms: derange, throw out of kilter |
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| (verb) disturb in mind or make uneasy or cause to be worried or alarmed | Synonyms: cark, disorder, disquiet, distract, trouble, unhinge |
| (verb) cause a celestial body to deviate from a theoretically regular orbital motion, especially as a result of interposed or extraordinary gravitational pull | - |
| (verb) disturb or interfere with the usual path of an electron or atom | - |