1 also in the meantime
in the period of time between now and a future event, or between two events in the past [= meanwhile]:
The doctor will be here soon. In the meantime, try and relax.
I didn't see her for another five years, and in the meantime she had got married and had a couple of kids.
for the present time, until something happens:
The power supply should be back soon - for the meantime we'll have to use candles.