6-Letter Word-Change one or two letters make a new word

duster

trusts

strums

master

arrest

Terran

Trojan

Jordan

danger

renege

greens

energy

grainy

gratis

(For anagrams, how do you know they didn’t change two letters into each other?)

gratin

nature

mature

(You couldn’t know, but the words would still be anagrams.)

mirage

Maggie

margin