Use this script to find meanings of words from bash shell. For convenience, make this script executable and add alias to file with the command `alias define='path-to-define.sh-file'`

Define.sh

#!/bin/bash
wget -q -O - "http://www.macmillandictionary.com/dictionary/british/$1" | grep -P -o "<span class=\"DEFINITION\">(.*?)</span>" | grep -Po '(?<=href=")[^"]*' | grep -Po '=.*?$' | cut -d = -f 2 | awk '{printf "%s ",$1}'