aspell-pl software package provides Polish dictionary for aspell, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install aspell-pl
aspell-pl is installed in your system.
Make ensure the aspell-pl package were installed using the commands given below,
$ sudo dpkg-query -l | grep aspell-pl *
You will get with aspell-pl package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Text Processing |
| Package | aspell-pl |
| Version | 20110901-1 |
| Description | Polish dictionary for aspell |
| Sub Section | Text |