Hello everyone, nice to welcome you on our site, this page even has Level 4 answers. I enjoy it =D
Level 4 - LIDENCU
The answer to this puzzle is:
Words: NUCLIDE, LEUCIN, NUCLEI, UNCLE, LUDIC, CLINE, DUNCE, CLUED, NUDIE, INDUE, UNLED, DENI, LUNE, CUED, CINE, UNDE, LUCE, ICED, DUCE, DUEL, DEIL, DIEL, DUCI, DUNE, NUDE, CLUE, LIEN, LIED, LIEU, DELI, CEDI, CEIL, ELD, CEL, DIE, DUE, ICE, DEN, LED, LID, END, LIE, DEL, LIN, LEI, CUE, NIL, DIN, DUN, CUD
Bonus words:
NUCLIDE, LEUCIN, NUCLEI, UNCLE, LUDIC, CLINE, DUNCE, CLUED, NUDIE, INDUE, UNLED, DENI, LUNE, CUED, CINE, UNDE, LUCE, ICED, DUCE, DUEL, DEIL, DIEL, DUCI, DUNE, NUDE, CLUE, LIEN, LIED, LIEU, DELI, CEDI, CEIL, ELD, CEL, DIE, DUE, ICE, DEN, LED, LID, END, LIE, DEL, LIN, LEI, CUE, NIL, DIN, DUN, CUD