to track down
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to track down
To find someone or something through an intensive and targeted search, often by following tracks or clues. It has the connotation of detective work or tracking.
Der Hund ist darauf trainiert, vermisste Personen im Wald aufzuspüren.
The dog is trained to track down missing people in the forest.
to detect
In a figurative sense, to discover something abstract such as errors, trends, talents, or opportunities through careful investigation or observation.
Die Software ist in der Lage, Unregelmäßigkeiten in den Datenmustern aufzuspüren.
The software is able to detect irregularities in the data patterns.
'Aufspüren' is a separable verb. The prefix 'auf' is separated from the verb in a main clause and placed at the end of the sentence.
Der Detektiv spürte den Dieb in einer kleinen Wohnung auf.
The detective tracked the thief down in a small apartment.
The verb 'aufspüren' is closely related to the noun 'die Spur' (the track/trace). Literally, it means to find a track and follow it in order to discover something or someone.
Die Polizei versucht, die Spur der Täter aufzuspüren.
The police are trying to track down the perpetrators' trail.
In the concrete meaning, 'aufspüren' is often used with people, animals, or hidden places. Typical objects are 'einen Vermissten' (a missing person), 'ein Tier' (an animal), 'ein Versteck' (a hiding place), or 'einen Schatz' (a treasure).
Es gelang ihnen, das geheime Versteck im Wald aufzuspüren.
They managed to track down the secret hiding place in the forest.
In a figurative sense, 'aufspüren' is used for abstract things that you find through analysis. Common combinations are 'Fehler aufspüren' (to detect errors), 'Probleme aufspüren' (to detect problems), 'Talente aufspüren' (to discover talent), or 'Trends aufspüren' (to detect trends).
Ihre Aufgabe ist es, neue Talente für den Verein aufzuspüren.
Her job is to discover new talent for the club.
to discover
Both words can mean finding a hidden person. „Entdecken“ emphasizes noticing them for the first time, whereas „aufspüren“ requires a targeted search based on tracks or clues. Use „entdecken“ for an unexpected find and „aufspüren“ for systematic investigation.
Die Polizei spürte das versteckte Kind mithilfe von Hinweisen auf.
The police tracked down the hidden child using clues.
Die Eltern entdeckten das versteckte Kind zufällig hinter dem Vorhang.
The parents accidentally discovered the hidden child behind the curtain.
