adjective
together, in common
B1
'gemeinsam' means 'together' or 'in common'. It functions as adjective and adverb, often used in phrases like 'gemeinsam mit' (together with). It is typically not gradable, so comparatives are uncommon. Used attributively or adverbially: wir arbeiten gemeinsam; not reflexive nor auxiliary-bound.
Examples
Sie haben viele Interessen gemeinsam.
They have many interests in common.
Wir arbeiten gemeinsam an dem Projekt.
We're working on the project together.
Die Nachbarn beschlossen, künftig gemeinsam den Park zu säubern, weil die Anlagen verwahrlost waren.
The neighbors decided to clean the park together in the future because the facilities were neglected.
Details
Mnemonics
Picture two groups joining hands under one large banner labeled 'gemeinsam' — everyone together.
Sounds like 'game-sign' — imagine people gathering around a common sign to show they're together.
Notes
Used both as adjective/adverb; common in everyday language to express joint action or shared traits.