Hello everyone, nice to welcome you on our site, this page even has Level 18 answers. I enjoy it =D
Level 18 - PRNEUTD
The answer to this puzzle is:
Words: UPTREND, PUNTER, PUNTED, PRUNED, DRUPE, PRUNE, TUNER, URPED, UPEND, DUPER, PRUDE, PERDU, NUDER, ERUPT, TENDU, TRUED, TUNED, DURE, TERN, DUNT, PERU, RUED, TURD, DENT, RUNE, UNDE, PENT, DUET, DUPE, DURN, NERD, NUDE, PERT, TRUE, PUNT, REND, TEND, RUNT, PET, DEN, RUN, END, RED, TUN, URN, TED, RUT, RUE, REP, PUN, PUD, DUN, PER
Bonus words:
UPTREND, PUNTER, PUNTED, PRUNED, DRUPE, PRUNE, TUNER, URPED, UPEND, DUPER, PRUDE, PERDU, NUDER, ERUPT, TENDU, TRUED, TUNED, DURE, TERN, DUNT, PERU, RUED, TURD, DENT, RUNE, UNDE, PENT, DUET, DUPE, DURN, NERD, NUDE, PERT, TRUE, PUNT, REND, TEND, RUNT, PET, DEN, RUN, END, RED, TUN, URN, TED, RUT, RUE, REP, PUN, PUD, DUN, PER