7 letter words
UNHAPPY​17
5 letter words (4 words)
HAPPY​15
NAPPY​12
APPUY​12
UNPAY​10
4 letter words (10 words)
YUAN​7
PUNY​9
PUPA​8
PUNA​6
NYAH​10
YAPP​11
HAUN​7
HAPU​9
PUHA​9
YAUP​9
3 letter words (24 words)
ANY​6
PAY​8
PAN​5
APP​7
HAY​9
HAN​6
NAY​6
NAP​5
PAP​7
HUN​6
YUP​8
PUP​7
NAH​6
PUN​5
HAP​8
YAH​9
YAP​8
PAH​8
HYP​11
HUP​8
2 letter words (13 words)
AN​2
UP​4
NY​5
PA​4
UN​2
HA​5
YA​5
AH​5
NU​2
YU​5
UH​5
AY​5
NA​2