to strengthen / consolidate
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to strengthen
To strengthen or consolidate something abstract, such as a relationship, knowledge, or a position.
Durch regelmäßiges Üben festigte sie ihre Sprachkenntnisse.
Through regular practice, she strengthened her language skills.
to reinforce
To make something physically more stable, firm, or solid.
Die Bauarbeiter festigten das Fundament mit zusätzlichem Beton.
The construction workers reinforced the foundation with additional concrete.
to become stronger
To become more stable, firm, or secure.
Seine Überzeugung hat sich über die Jahre gefestigt.
His conviction has become stronger over the years.
The verb 'festigen' (to strengthen/consolidate) is derived from the adjective 'fest' (firm), which means 'stable' or 'solid.' So 'festigen' literally means 'to make firm.'
Mit diesen Übungen können Sie Ihre Rückenmuskulatur festigen.
With these exercises, you can strengthen your back muscles.
In its non-reflexive form, 'festigen' (to strengthen/consolidate) is a transitive verb. It always needs an accusative object, meaning something that is being strengthened or consolidated.
Die Firma will ihre Position auf dem Markt festigen.
The company wants to consolidate its position in the market.
In a figurative sense, 'festigen' (to strengthen/consolidate) is often used with abstract concepts. Typical combinations are: 'eine Beziehung festigen' (to strengthen a relationship), 'eine Freundschaft festigen' (to strengthen a friendship), 'Wissen festigen' (to consolidate knowledge), or 'die eigene Macht festigen' (to consolidate one's own power).
Regelmäßige Wiederholung hilft, das Gelernte zu festigen.
Regular repetition helps consolidate what has been learned.
In its literal, physical meaning, the verb is often used in construction or geology. For example, you can say 'ein Fundament festigen' (to reinforce a foundation), 'den Boden festigen' (to stabilize the ground), or 'eine lockere Schraube festigen' (to tighten a loose screw).
Die Wurzeln der Bäume festigen den Hang.
The roots of the trees stabilize the slope.
When something becomes more stable on its own, the reflexive form 'sich festigen' (to become stronger/more stable) is used. The subject of the sentence is then the thing that is becoming firmer or more secure.
Seine Position im Unternehmen hat sich gefestigt.
His position in the company has become stronger.
to strengthen
Stärken and festigen can both improve a relationship, a position, or something similar. Stärken emphasizes an increase in strength or influence, whereas festigen emphasizes lasting stability. Use stärken for general reinforcement, and festigen when something is meant to become more secure in the long term.
Die gemeinsamen Erlebnisse festigten ihre Freundschaft dauerhaft.
The experiences they shared solidified their friendship permanently.
Die gemeinsamen Erlebnisse stärkten ihre Freundschaft.
The experiences they shared strengthened their friendship.
