Uttering holy word has two effects.
If the character is on the character's home plane, the spell
instantly banishes nongood extraplanar creatures within the area
back to their home planes. Creatures so banished cannot return
for at least 1 day. This effect takes place regardless of whether
the creatures hear the holy word.
Creatures native to the character's plane who hear the holy
word and are not good suffer the following ill effects:
12 or more Deafened
Less than 12 Blinded, deafened
Less than 8 Paralyzed, blinded, deafened
Less than 4 Killed, paralyzed, blinded, deafened
The effects are cumulative.
Deafened: The creature is deafened (see blindness/deafness)
for 1d4 rounds.
Blinded: The creature is blinded (see blindness/deafness) for
Paralyzed: The creature is paralyzed and helpless for 1d10
minutes, unable to move or act in any way.
Killed: Living creatures die. Undead creatures are destroyed.