Answer:
1. un + safe = unsafe meaning: not safe
2. over + time = overtime meaning: beyond time
3. de + plane = deplane meaning: remove plane
4. un + certain = uncertain meaning: not certain
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5. unfortunate
6. defrost
7. it is either overtime or overflow (I think it may be overtime...)
8. deplane
Explanation:
I hope this helped a little bit!! :)
