startklar
ready to go
Fully prepared and ready to begin something or set off.
Alle Läufer sind startklar und warten nur noch auf das Signal.
All the runners are ready to go and are just waiting for the signal.

ready to go
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ready to go
Fully prepared and ready to begin something or set off.
Alle Läufer sind startklar und warten nur noch auf das Signal.
All the runners are ready to go and are just waiting for the signal.

The word is a compound of 'Start' (start) and 'klar' (clear/ready). Here, 'klar' does not mean 'transparent', but rather 'ready' or 'finished'.
Sobald die Präsentation fertig ist, sind wir startklar für das Meeting.
As soon as the presentation is finished, we'll be ready to go for the meeting.
'Startklar' is used almost exclusively predicatively, that is, together with a verb like 'sein' (to be) or 'machen' (to make). Using it directly before a noun (attributively) is very rare and sounds unnatural.
Das Team ist startklar für den Wettbewerb.
The team is ready to go for the competition.
A very common expression is 'sich startklar machen' (to get oneself ready to go). This describes the process of preparing for a beginning.
Die Pilotin macht sich für den Abflug startklar.
The pilot is getting ready for takeoff.
ready
'bereit' and 'startklar' both mean that you can begin. 'bereit' is very general and works for people, plans, decisions, or situations. 'startklar' is used especially when everything is finished and something is about to start or get going. It sounds more concrete and often a bit more practical, for example with a trip, a course, or a project. You can remember it like this: 'bereit' can also simply show willingness, while 'startklar' usually means that everything is really prepared for the start.

Die Fahrräder sind repariert, also sind wir für die Tour startklar.
The bikes have been repaired, so we are ready to go for the tour.
Heute ist meine Nachbarin bereit für die Reise nach Spanien.
Today my neighbor is ready for the trip to Spain.