GHARIAL
GHARIALS
GHARRI
GHARRIES
GHARRIS
GHARRY
GHAST
GHASTED
GHASTFUL
GHASTFULLY
GHASTING
GHASTLIER
GHASTLIEST
GHASTLINESS
GHASTLINESSES
GHASTLY
GHASTNESS
GHASTNESSES
GHASTS
GHAT
GHATS
GHAUT
GHAUTS
GHAZAL
GHAZALS
GHAZEL
GHAZELS
GHAZI
GHAZIES
GHAZIS

30 words start with GHA.