Amazingly
most modern internet/web browsers (essentially http clients) have a feature via their context menu (often a right mouse 'click' within the web page) whereby a person can select some text whilst holding down the right mouse button and then select to perform a search using their nominated search engine of said highlighted text. Apparently Google is a popular choice.
The results may contain links (pointers to a separate web page) which often lead to online dictionaries & wikis (I wouldn't trust them as generally *anyone* can edit them) where a meaning or description for the selected text maybe found.
I hope this has been of some help to you Badger. :)
PS: the colon & end parenthesis at the end of that previous sentence is known as a smiley or emoticon - it is often used to display an emotional message as an addendum to a short text based message. Oh, I see you have used one as well - I apologise if I have at all appeared patronising or condescending in trying to explain that to you.
EDITed for clarity.
(Misery McUglywife an attention seeking sociopathic fuckstain., Tue 12 Apr 2011, 0:12, 1 reply)

Wow so puerile. That was cathartic.

( Amorous Badger NAKED BEA ARTHUR PHOTOS 4U, Tue 12 Apr 2011, 9:11, closed)

See what I wrote above & below.
Again.
Somewhat predictably.
Ohh, & my sig..
(Misery McUglywife an attention seeking sociopathic fuckstain., Tue 12 Apr 2011, 10:38, closed)

Contextual example.
Gillard spruiks massive solar power project
(Misery McUglywife an attention seeking sociopathic fuckstain., Thu 14 Apr 2011, 3:39, closed)