
der Sitzplatz
seat
An assigned or available place intended for sitting, for example in a vehicle, cinema, or stadium.
Im Zug war leider kein freier Sitzplatz mehr verfügbar.
Unfortunately, there was no free seat available on the train anymore.
seat
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seat
An assigned or available place intended for sitting, for example in a vehicle, cinema, or stadium.
Im Zug war leider kein freier Sitzplatz mehr verfügbar.
Unfortunately, there was no free seat available on the train anymore.
The word 'Sitzplatz' (seat) is made up of 'Sitz' (from the verb 'sitzen' — to sit) and 'Platz' (place/space). So it literally means a 'place to sit'.
Gibt es in diesem Abteil noch einen freien Sitzplatz am Fenster?
Is there still a free window seat in this compartment?
Common verbs used with 'Sitzplatz' (seat) are 'einen Sitzplatz reservieren' (to reserve a seat), 'buchen' (to book), 'suchen' (to look for), or 'finden' (to find).
Für die lange Zugfahrt sollten Sie unbedingt einen Sitzplatz reservieren.
For the long train journey, you should definitely reserve a seat.
A common instruction on public transportation or at events is 'Bitte nehmen Sie Ihre Sitzplätze ein' (please take your seats). This means that you should sit down.
Bitte nehmen Sie Ihre Sitzplätze ein, die Vorstellung beginnt in wenigen Minuten.
Please take your seats; the performance will begin in a few minutes.
place / space
Platz and Sitzplatz can both refer to an available spot in a vehicle, cinema, or stadium. Platz is more general and can also refer to other kinds of space, while Sitzplatz specifically means a place intended for sitting. When the seating function matters, Sitzplatz is the more precise choice; otherwise, Platz is often enough.

Im Zug war neben dem Fenster noch ein Sitzplatz frei.
There was still a seat available by the window on the train.
Im Zug war neben dem Fenster noch ein Platz frei.
There was still a place available by the window on the train.