This is the 6494th most frequent German word.
einwandern
To immigrate.
This sentence uses 'einwandern' in the infinitive form, describing the action of immigrating.
Viele Menschen entscheiden sich, nach Deutschland einzuwandern.
Many people decide to immigrate to Germany.
Here, 'einwandern' is used in its past tense form 'eingewandert', referring to a completed action of immigration.
Er ist vor zwei Jahren aus Kanada eingewandert.
He immigrated from Canada two years ago.
In this sentence, 'einwandern' is used as a gerund, representing the concept of immigration in general.