Definition of polarize for English Language Learners. : 1  to cause (people, opinions, etc.) to separate into opposing groups. 2  physics : to cause (something, such as light waves) to vibrate in a particular pattern. 3  physics : to cause (something) to have positive and negative charges : to give polarity to (something)
Future Index has been a really useful resource for engaging the team, for sparking new ideas and for stimulating debate â and for more than a few actual new projects! Our reports and workshops are a great way to stay up to date and at the top of your game.
DEFINITION of 'Index'. A statistical measure of change in an economy or a securities market. In the case of financial markets, an index is an imaginary portfolio of securities representing a particular market or a portion of it. Each index has its own calculation methodology and is usually expressed in terms of a change from a base value. Thus, the percentage change is more important than the actual numeric value.