SUBSTITUTING — АНАГРАМИ

substituting

butt in in situ in-situ issuing sitting subunit suiting sunsuit

biting g suit insist intuit sigint sit in sit-in titbit tubing tungus unguis

bitis butut inuit nisus sinus sting stint stung stunt titus tunis tutsi using

bitt bung buns bunt buss bust butt gist guib gust guts ibis inst inti isis nisi nist ntis nuts sign sing snit snub snug stub stun sugi suit sung ting tint titi tung tutu unit utug

big bin bit bns btu bug bun bus but gib gin git gnu gui gun gut iis ins isi isn ngb ngu nib nit nsu nub nut s/n sib sin sis sit sub sun sus tin tit tiu tnt tss tub tug tun uns usn utn utu

bi bs gb gi gu ig ii in nb ng ni nt nu sb si sn ss tb ti tn tt un us ut