How can I get a dictionary to use to look up definitions of words in Word 2007?

[andrewanimation]

How can I get a dictionary to use to look up definitions of words in the Research tab in Microsoft Office Word 2007? My Word 2010 on another computer has an Encarta Dictionary give me definitions of words when I alt + click on a word, but I can't find a way to get the dictionary in Word 2007 on my laptop, even when I click on "Research options..." there's only a Thesaurus. Please help.

 

[Nanobyte]

There's an illustrated guide here but it sound a lot like your Word 2010. The "Alt" tip is at the bottom of the page.

 

[tremmor]

Try this. ive used for years. Created by students at Berkley Unv.
They have a free ver and pay. Ive used the pay for years now.
Double click a word on the net or doc file and click on wordweb in the tray.
The free might be enough. love the wildcards.
a*s, wh?c?.
works well .

http://wordweb.info/

the pay is languages, crosswords, medical, engineering.
does more. don't use it all. tells ya what it means, how to use it in sentence
and words that are equivalent and mean the same thing.