edict software package provides English / Japanese dictionary, 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 edict
edict is installed in your system.
Make ensure the edict package were installed using the commands given below,
$ sudo dpkg-query -l | grep edict *
You will get with edict package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | Text Processing |
| Package | edict |
| Version | 2015.11.09-1 |
| Description | English / Japanese dictionary |
| Sub Section | Text |