der Bundeskanzler
Federal Chancellor
The head of government of the Federal Republic of Germany.
Der Bundeskanzler hält heute eine Regierungserklärung im Bundestag.
The Federal Chancellor is giving a government statement in the Bundestag today.

Federal Chancellor
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Federal Chancellor
The head of government of the Federal Republic of Germany.
Der Bundeskanzler hält heute eine Regierungserklärung im Bundestag.
The Federal Chancellor is giving a government statement in the Bundestag today.

The word is made up of 'Bund' (short for Bundesrepublik, Federal Republic), the linking element '-es-', and 'Kanzler' (chancellor). So it refers to the chancellor of the federation.
Viele politische Ämter in Deutschland beginnen mit „Bundes-“, zum Beispiel der Bundespräsident.
Many political offices in Germany begin with 'Bundes-', for example 'der Bundespräsident' (the Federal President).
When German usage refers to the 'Bundeskanzler' (Federal Chancellor) without any further addition, it almost always means the head of government of Germany. To distinguish the Austrian chancellor, people often say 'österreichischer Bundeskanzler' (Austrian Federal Chancellor).
Der Bundeskanzler reist morgen nach Brüssel.
The Federal Chancellor is traveling to Brussels tomorrow.
Common verbs used with 'Bundeskanzler' (Federal Chancellor) are 'wählen' (to elect), 'ernennen' (to appoint), 'eine Rede halten' (to give a speech), or 'jemanden empfangen' (to receive someone).
Der Bundestag wählt den Bundeskanzler.
The Bundestag elects the Federal Chancellor.
minister-president
'der Ministerpräsident' and 'der Bundeskanzler' are both heads of government, but they belong to different political levels. A 'Ministerpräsident' leads the government of a federal state. The 'Bundeskanzler' leads the government of the whole country, for example in Germany or Austria. The words are easy to confuse because both people govern and often appear in the news. Pay attention to 'Bundes-': the 'Bundeskanzler' belongs to the federal level, while the 'Ministerpräsident' belongs to the level of a federal state.

Der Bundeskanzler erklärt im Parlament die neue Entscheidung der Regierung.
The Federal Chancellor explains the government's new decision in parliament.
Am Montag trifft der Ministerpräsident die Bürgermeister der Region.
On Monday, the minister-president is meeting the mayors of the region.