Hyperwords - such a handy plugin

Reading the Times Online announcing Microsoft's Bing Search Engine

The two biggest names in technology are set to slug it out over the coming weeks in a $20 billion (£12 billion) battle for web supremacy. In one corner is Google, the dominant player in online searches; in the other is Microsoft, the world’s biggest software company. Microsoft is poised to launch Bing, a new search engine it says will give more useful results and end its rival’s hegemony.

I admit to not being sure what the word 'hegemony' means. Instead of having to look for the dictionary (which I don't always have to hand, or opening another tab to access an online dictionary) I just double click on the word and thanks to a plug in called Hyperwords, I have the meaning in seconds without leaving the page.

From Ancient Greek ἡγεμονία (hēgemonia), “‘supremacy or leadership, chief command’”) < ἡγεμόν (hegemon), “‘a leader, guide, commander, chief’”) < ἡγεισθαι (hegeisthai), “‘to lead’”) < αγειν (agein), “‘to lead’”).

I can translate the word into French, hégémonie, into Arabic سيطرة, and replaces the original word in the text with the translated word.

There are a number of other different functions that it carries out, but what a godsend just for its translation and reference features alone!