A group or quantity of people, objects, or data that have gathered in one place or are concentrated there.
example
Eine große Ansammlung von Menschen wartete vor dem Konzerthaus auf Einlass.
A large gathering of people was waiting outside the concert hall to be admitted.
Usage tips
Word structure
“Ansammlung” (accumulation/gathering) is a noun derived from the separable verb “sich ansammeln” (to accumulate; to gather). The ending “-ung” turns the action of collecting into a thing, namely the collected quantity.
EXAMPLE
Im Laufe der Jahre hat sich bei ihm eine Menge Staub angesammelt.
Over the years, a lot of dust has accumulated at his place.
Use with “von”
To describe what the accumulation or gathering consists of, the preposition “von” (of) followed by the dative is almost always used.
EXAMPLE
Vor dem Museum bildete sich eine lange Ansammlung von Touristen.
A long gathering of tourists formed in front of the museum.
Neutral tone
The word “Ansammlung” (accumulation/gathering) is often neutral and descriptive. It can be used for groups of people, but also for a quantity of objects, vehicles, or even liquids and data.
EXAMPLE
Auf der Festplatte gab es eine riesige Ansammlung von ungenutzten Dateien.
There was a huge accumulation of unused files on the hard drive.
Compare with
near_synonym
Ansammlung vs Gruppe
group
'die Gruppe' and 'die Ansammlung' can both refer to several people or things that are in one place. 'die Gruppe' sounds more organized or connected: the people or things form a unit. 'die Ansammlung' puts more emphasis on many people, objects, or data collecting in one place. They do not necessarily have to truly belong together. For a team or a fixed unit, 'Gruppe' is more natural; for many things or people in one place, 'Ansammlung' often fits better.
Ansammlung
Vor dem Eingang sieht man eine Ansammlung von Fahrrädern.
In front of the entrance, you can see a gathering of bicycles.
Gruppe
Am Montag hat unsere Gruppe gemeinsam den Termin vorbereitet.
On Monday, our group prepared the appointment together.