11 letter words:
gonococcoid19,
9 letter words:
gonococci16,
7 letter words:
coccoid14,
coondog11,
6 letter words:
coccid13,
cocoon10,
coding10,
coocoo10,
conoid9,
cooing9,
5 letter words:
cocci11,
cocco11,
conic9,
codon8,
cogon8,
coign8,
condo8,
congo8,
incog8,
dingo7,
doing7,
4 letter words:
coco8,
cond7,
doco7,
odic7,
cion6,
coin6,
coni6,
coon6,
ding6,
dong6,
good6,
icon6,
dino5,
doon5,
goon5,
ingo5,
nodi5,
3 letter words:
cid6,
cig6,
cod6,
cog6,
doc6,
con5,
coo5,
dig5,
dog5,
gid5,
god5,
din4,
don4,
doo4,
gin4,
gio4,
gon4,
goo4,
nid4,
nod4,
nog4,
ion3,
noo3,
ono3,
oon3,
2 letter words:
di3,
do3,
gi3,
go3,
id3,
od3,
in2,
io2,
no2,
oi2,
on2,
oo2,