isolation / insulation
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isolation
The state of being separated or cut off from other people or society; social separation.
Die lange Krankheit und die fehlenden Besuche führten zu seiner zunehmenden Isolation.
The long illness and the lack of visits led to his increasing isolation.
insulation
The technical measure of shielding or insulating something in order to prevent the transfer of heat, sound, or electric current.
Eine gute Isolation der Wände und des Daches spart im Winter erheblich Heizkosten.
Good insulation of the walls and roof saves a considerable amount on heating costs in winter.
isolation
The medical measure of separating an infectious person from others in order to prevent the spread of a disease.
Der Patient wurde wegen der hochansteckenden Infektion unter strikte Isolation gestellt.
The patient was placed under strict isolation because of the highly contagious infection.
The ending '-ation' indicates a noun that describes a process or state and often comes from Latin. Such words frequently belong to a more formal or specialized register.
Die Globalisierung führt nicht immer zu mehr Kommunikation, sondern manchmal auch zu Isolation.
Globalization does not always lead to more communication, but sometimes also to isolation.
You can recognize the meaning from the context: words like 'sozial' (social), 'einsam' (lonely), or 'Kontakt' (contact) point to the social meaning. Terms like 'Wärme' (heat), 'Schall' (sound), 'Strom' (electric current), or 'Gebäude' (building) point to the technical meaning. 'Patient' (patient), 'Krankheit' (illness/disease), or 'ansteckend' (contagious) signal the medical context.
Viele ältere Menschen leiden unter sozialer Isolation.
Many older people suffer from social isolation.
In a social context, 'Isolation' is often combined with verbs such as 'leben in' (to live in), 'leiden unter' (to suffer from), or 'geraten in' (to fall into). A common adjective is 'sozial' (social).
Nach dem Umzug in die neue Stadt litt er anfangs unter seiner Isolation.
After moving to the new city, he initially suffered from his isolation.
In the technical sense, 'Isolation' is often combined with adjectives that describe the purpose more precisely, e.g. 'thermische Isolation' (thermal insulation/heat), 'akustische Isolation' (acoustic insulation/sound), or 'elektrische Isolation' (electrical insulation/electric current).
Eine gute akustische Isolation ist in einem Tonstudio unerlässlich.
Good acoustic insulation is essential in a recording studio.
In a medical context, the fixed expressions 'jemanden unter Isolation stellen' (to place someone under isolation) and 'unter Isolation stehen' (to be under isolation) are very common.
Der infizierte Reisende wurde sofort unter Isolation gestellt.
The infected traveler was immediately placed under isolation.
loneliness / solitude
Einsamkeit primarily refers to the personal feeling of being alone and separated from others. Isolation, by contrast, describes actual social separation. Someone can therefore feel lonely despite being with other people, while isolation can exist even without such a feeling.
Weil Lara seit Wochen keinen Kontakt zu anderen hat, leidet sie unter sozialer Isolation.
Because Lara has had no contact with anyone else for weeks, she suffers from social isolation.
Obwohl Lara täglich unter Menschen ist, leidet sie unter großer Einsamkeit.
Although Lara is around people every day, she suffers from intense loneliness.
