Word definitions from your command line! (using Python)
###Installation
$ wget http://raw.github.com/hardikr/define.py/master/define.py -O /tmp/define
$ sudo cp /tmp/define /usr/local/bin/ # or /usr/bin
$ sudo chmod +x /usr/local/bin/define
###Usage
$ define hello
1) Used as a greeting
2) Used to begin a telephone conversation
3) Used to express surprise
4) Used as a cry to attract someone attention
5) Expressing sarcasm or anger
###Notes
Uses Google's undocumented Definitions API (see code). May break some time in the future :-/