die Minute
minute
A unit of time that lasts sixty seconds. Sixty minutes make one hour.
Der Zug fährt in genau fünf Minuten ab.
The train leaves in exactly five minutes.

minute
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minute
A unit of time that lasts sixty seconds. Sixty minutes make one hour.
Der Zug fährt in genau fünf Minuten ab.
The train leaves in exactly five minutes.

The meaning of 'Minute' depends strongly on the context. With a number ('fünf Minuten' — five minutes), it means the unit of time. On its own ('eine Minute!' — one minute!), it means a short moment. In the plural in a business context ('die Minuten der Sitzung' — the minutes of the meeting), it refers to the written record.
Ich brauche nur eine Minute, dann bin ich fertig.
I just need a minute, then I'll be finished.
There are fixed expressions with 'Minute'. 'In letzter Minute' (at the last minute) means doing something just in time. 'Auf die Minute genau' (to the exact minute) means being extremely punctual.
Er kam auf die Minute genau zum Treffen.
He arrived at the meeting right on the dot.
The meaning 'minutes' or 'written record' is used almost exclusively in the plural 'die Minuten'. Typical verbs in this context are 'Minuten führen' (to take minutes), 'schreiben' (to write), or 'genehmigen' (to approve).
Wer führt heute die Minuten?
Who is taking the minutes today?
hour
'die Minute' and 'die Stunde' are both units of time. The difference is their length: one minute lasts sixty seconds, while one hour lasts sixty minutes. Learners may confuse the words because both occur very often with clock times, appointments, and expressions of duration. The important point is: for short periods of time, you usually say 'Minute'; for longer periods, 'Stunde'. You also need to be precise with numbers, because 'zehn Minuten' (ten minutes) and 'zehn Stunden' (ten hours) are very different.

Beim Termin musste die Gruppe nur fünf Minuten warten.
At the appointment, the group only had to wait five minutes.
Die Ärztin hat heute erst in einer Stunde Zeit.
The doctor won't have time until an hour from now.