In a certain code language,
(A) ‘pic vic nic’ means ‘winter is cold’
(B) ‘to nic re’ means ‘summer is hot’
(C) ‘re pic boo’ means 'winter and summer’
(D) ‘vic tho pa’ means ‘nights are cold’
Which word in that language means 'summer' ?

Answer: B. re

In statements B and C, the common code word is 're' and the common word is 'summer'.
So, 're' means 'summer'.