Hello everyone, nice to welcome you on our site, this page even has Level 3 answers. I enjoy it =D
Level 3 - NERARTSI
The answer to this puzzle is:
Words: STRAINER, TERRAINS, RESTRAIN, RETRAINS, TARRIES, ARTSIER, RETSINA, RANTERS, ANTSIER, STEARIN, RATINES, RETRAIN, RETINAS, SIERRAN, NASTIER, STAINER, ERRANTS, ANESTRI, TENIAS, STERNA, INTERS, ARSINE, SANTIR, RINSER, SIERRA, ARISEN, STARER, TRINES, AIRERS, SINTER, RASTER, RATERS, SEITAN, INSTAR, ASTERN, ESTRIN, TISANE, TRIERS, STRIAE, TERRAS, RAISER, RAREST, RANTER, SATIRE, NITERS, TRIENS, TARRES, ARTIER, INERTS, RATINE, AIREST, TERAIS, IRATER, NITRES, SNARER, TINEAS, RISTRA, ANTRES, RESAT, ANTES, RETIA, RATER, SERIN, STERN, NITES, ARRIS, ANISE, NERTS, NEARS, STRIA, RASER, REINS, RISER, STARE, NARES, ASTIR, TRIES, TERAI, NEATS, AIRTS, ANTIS, TRINE, ENTIA, RARES, TENIA, SENTI, SANER, RIANT, TINEA, TRAIN, NITRE, ETNAS, TRIER, TINES, NATES, TERNS, TAINS, SERAI, SARIN, REARS, AIRNS, STEIN, TARRE, TARES, RANIS, EARNS, STAIN, TARSI, INERT, STANE, ANTRE, SIREN, RISEN, NARIS, AIRER, NITER, INTER, RERAN, RESIN, TERRA, TRANS, NEIST, SIRRA, TEARS, TIERS, ASTER, STAIR, SNARE, RANTS, INSET, TIRES, SITAR, IRATE, RENTS, RAINS, TARNS, RINSE, RITES, SAINT, RESIT, RATES, TARS, ERNS, AINS, SETA, SNIT, ANES, ATES, AIRN, AIRT, AITS, RINS, ETAS, ERRS, RIAS, TERN, TEAR, NEAT, RATS, TIER, EARS, TIRE, TIES, NETS, ETNA, EATS, SARI, ANTS, STIR, REIN, TENS, RITE, REAR, RENT, SENT, RATE, REST, ARTS, SITE, SEAT, EAST, RARE, RISE, ANTI, RAIN, STAR, EARN, NEAR, IRAN, SINE, NEST, SIRE, SAIN, ANIS, REIS, ERST, SERA, ANTE, TAIN, ARES, TANS, RANI, TARN, SEAR, TSAR, NITE, NITS, SATE, ARSE, TEAS, RANT, TARE, ERAS, AIRS, TINE, TRES, TINS, SANE, SEA, TEA, TIE, EAR, ART, ANT, RAT, TAN, ITS, TIN, NET, SAT, ATE, NIT, TAR, ERR, IRE, RES, SER, SEN, INS, RAN, SIT, ARE, SET, AIR, EAT, ETA, TEN, SIN, ANI, SIR, ERA
Bonus words:
STRAINER, TERRAINS, RESTRAIN, RETRAINS, TARRIES, ARTSIER, RETSINA, RANTERS, ANTSIER, STEARIN, RATINES, RETRAIN, RETINAS, SIERRAN, NASTIER, STAINER, ERRANTS, ANESTRI, TENIAS, STERNA, INTERS, ARSINE, SANTIR, RINSER, SIERRA, ARISEN, STARER, TRINES, AIRERS, SINTER, RASTER, RATERS, SEITAN, INSTAR, ASTERN, ESTRIN, TISANE, TRIERS, STRIAE, TERRAS, RAISER, RAREST, RANTER, SATIRE, NITERS, TRIENS, TARRES, ARTIER, INERTS, RATINE, AIREST, TERAIS, IRATER, NITRES, SNARER, TINEAS, RISTRA, ANTRES, RESAT, ANTES, RETIA, RATER, SERIN, STERN, NITES, ARRIS, ANISE, NERTS, NEARS, STRIA, RASER, REINS, RISER, STARE, NARES, ASTIR, TRIES, TERAI, NEATS, AIRTS, ANTIS, TRINE, ENTIA, RARES, TENIA, SENTI, SANER, RIANT, TINEA, TRAIN, NITRE, ETNAS, TRIER, TINES, NATES, TERNS, TAINS, SERAI, SARIN, REARS, AIRNS, STEIN, TARRE, TARES, RANIS, EARNS, STAIN, TARSI, INERT, STANE, ANTRE, SIREN, RISEN, NARIS, AIRER, NITER, INTER, RERAN, RESIN, TERRA, TRANS, NEIST, SIRRA, TEARS, TIERS, ASTER, STAIR, SNARE, RANTS, INSET, TIRES, SITAR, IRATE, RENTS, RAINS, TARNS, RINSE, RITES, SAINT, RESIT, RATES, TARS, ERNS, AINS, SETA, SNIT, ANES, ATES, AIRN, AIRT, AITS, RINS, ETAS, ERRS, RIAS, TERN, TEAR, NEAT, RATS, TIER, EARS, TIRE, TIES, NETS, ETNA, EATS, SARI, ANTS, STIR, REIN, TENS, RITE, REAR, RENT, SENT, RATE, REST, ARTS, SITE, SEAT, EAST, RARE, RISE, ANTI, RAIN, STAR, EARN, NEAR, IRAN, SINE, NEST, SIRE, SAIN, ANIS, REIS, ERST, SERA, ANTE, TAIN, ARES, TANS, RANI, TARN, SEAR, TSAR, NITE, NITS, SATE, ARSE, TEAS, RANT, TARE, ERAS, AIRS, TINE, TRES, TINS, SANE, SEA, TEA, TIE, EAR, ART, ANT, RAT, TAN, ITS, TIN, NET, SAT, ATE, NIT, TAR, ERR, IRE, RES, SER, SEN, INS, RAN, SIT, ARE, SET, AIR, EAT, ETA, TEN, SIN, ANI, SIR, ERA