In English, "re" is a prefix usually meaning "again", such as in "rebuild" (build again).
However there are many words starting with "re" which have a totally different meaning without the "re".
You will be given two definitions, one for a word starting with "re", and one for the remaining word without the "re"
1. difficult search / politely ask
2. trustworthy / legally responsible
3. hospital room / prize for achievement