better
In addition to the idioms beginning with better, also see against one's better judgment; all better; all the better; discretion is the better part of valor; for better or for worse; get better; get the better (best) of; go one better; had better (best); know better; seen better days; so much the better; sooner the better; take a turn for the better; think better of; you'd better believe it. Also see under best.