
die Lockerung
easing
The act of making a rule, law, or restriction less strict or partially lifting it.
Die Regierung hat eine Lockerung der Kontaktbeschränkungen angekündigt.
The government has announced an easing of the contact restrictions.
loosening / easing
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easing
The act of making a rule, law, or restriction less strict or partially lifting it.
Die Regierung hat eine Lockerung der Kontaktbeschränkungen angekündigt.
The government has announced an easing of the contact restrictions.

loosening
The loosening or relaxing of something that was tight, tense, or compact, for example muscles or soil.
Nach dem Sport ist die Lockerung der Muskulatur durch Dehnübungen wichtig.
After exercise, loosening the muscles through stretching exercises is important.
The noun 'die Lockerung' is derived from the verb 'lockern' (to loosen). The ending '-ung' turns the verb into a feminine noun that describes the action or result of loosening.
Die Lockerung der Schraube führte zu einem technischen Problem.
The loosening of the screw led to a technical problem.
The context makes the meaning clear. If it is about rules, laws, or politics, it refers to the lifting or easing of restrictions. If it is about the body, sports, or gardening, it refers to physical relaxation or loosening.
Viele Bürger hoffen auf eine Lockerung der strengen Vorschriften.
Many citizens are hoping for an easing of the strict regulations.
In a political or social context, 'Lockerung' often appears with a genitive or in a compound. Typical examples are: 'die Lockerung der Maßnahmen' (the easing of the measures), 'die Lockerung der Regeln' (the easing of the rules), or 'Reise-Lockerungen' (travel easings / eased travel restrictions).
Die Wirtschaft fordert eine schnelle Lockerung der Beschränkungen.
The economy is calling for a quick easing of the restrictions.
In a physical context, typical combinations are 'die Lockerung der Muskulatur' (loosening of the muscles), 'die Lockerung des Bodens' (loosening of the soil), or 'die Lockerung der Gelenke' (loosening of the joints).
Leichte Dehnübungen helfen bei der Lockerung der Muskeln.
Light stretching exercises help loosen the muscles.
solution
In a fixed connection, die Lösung can refer to separating it completely. Die Lockerung, by contrast, only makes the connection less tight, so it usually remains in place. Lockerung is therefore the better choice for simply reducing the tightness.

Zur Einstellung war nur eine leichte Lockerung der Schraubverbindung nötig.
The screw connection only needed to be loosened slightly for the adjustment.
Zur Reparatur war die vollständige Lösung der Schraubverbindung nötig.
The screw connection had to be completely separated for the repair.