aspell-nl software package provides Dutch dictionary for Aspell, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install aspell-nl
aspell-nl is installed in your system.
Make ensure the aspell-nl package were installed using the commands given below,
$ sudo dpkg-query -l | grep aspell-nl *
You will get with aspell-nl package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Text Processing |
| Package | aspell-nl |
| Version | 1:2.10-4 |
| Description | Dutch dictionary for Aspell |
| Sub Section | Text |