use '?' for JOKER (blank)

From letters Z, I, N, C, I, N, G  I made following words

7 letter words

zincing[18]

5 letter words

icing[8]

4 letter words

zinc[14], zing[13]

3 letter words

zig[12], zin[11], cig[6], gin[4], inn[3]

2 letter words

in[2]