Enter criteria and click Find Words
Thirty six words put A in the second box and Z in the third, and more than half of them continue the same way.
Twenty one of the thirty six put E in the fourth box, fifty eight percent, which gives you the AZE family behind GAZED, RAZED, MAZES and FAZED. That branch is larger than everything else in the group put together, so E is the obvious test.
RAZOR and HAZEL are the two most common words here and neither follows the AZE shape. JAZZY doubles the Z straight away, and KAZOO is the one that finishes on a doubled O.
Z turns up less than any other letter in ordinary English, so any pattern that pins it in place ends up short. Thirty six words is what fixing the third box as Z leaves you.
Two. It runs J, A, Z, Z, Y, so the Z in the third box is followed immediately by a second one. It is the only word here in everyday use that doubles the Z.
Yes. Three words here end in a doubled O and KAZOO is the only one you are likely to meet.