Hello everyone, nice to welcome you on our site, this page even has Level 21 answers. I enjoy it =D
Level 21 - TGINNRPI
The answer to this puzzle is:
Words: TRINING, PINING, TIRING, RIPING, TINING, PIING, IRING, GRIPT, GRIT, TRIG, TIPI, INTI, GIRT, TING, PRIG, GIRN, NIT, NIP, TIN, GIT, INN, TIP, GIN, PIN
Bonus words:
TRINING, PINING, TIRING, RIPING, TINING, PIING, IRING, GRIPT, GRIT, TRIG, TIPI, INTI, GIRT, TING, PRIG, GIRN, NIT, NIP, TIN, GIT, INN, TIP, GIN, PIN