This package contains sources for 14 ispell dictionaries:

for German (already compiled for ispell in package ispell-german)

for New German (already compiled for ispell in package
ispell-ngerman)

for New Swiss (already compiled for ispell in package ispell-nswiss)

for Danish (already compiled for ispell in package ispell-danish)

for Spanish (already compiled for ispell in package
ispell-spanish)

for French (already compiled for ispell in package ispell-french)

for Italian (already compiled for ispell in package
ispell-italian)

for Dutch (already compiled for ispell in package ispell-dutch)

for Swedish (already compiled for ispell in package
ispell-swedish)

for Norwegian (already compiled for ispell in package ispell-norsk)

for Portuguese (already compiled for ispell in package
ispell-portuguese)

for Catalan (already compiled for ispell in package
ispell-catalan)

for Czech (already compiled for ispell in package ispell-czech)

for Polish (already compiled for ispell in package ispell-polish)

for Greek (already compiled for ispell in package ispell-greek)

for Russian (already compiled for ispell in package
ispell-russian)

for Brazilian (already compiled for ispell in package
ispell-brazilian)

for Finnish (already compiled for ispell in package
ispell-finnish)

for Estonian (already compiled for ispell in package
ispell-estonian)

Read the READMEs under /usr/src/dicts.