What is the meaning of the icons at bottom of the screen of my Nokia Lumia 520?

[Windows Central Question]

meaning of icons at bottom of screen of nokia lumia 520

purpose of icons

 

[SammyD97]

Re: meaning of icons at bottom of screen of nokia lumia 520

We cannot help you without a description or pictures of the icons.

 

[RumoredNow]

Re: meaning of icons at bottom of screen of nokia lumia 520

Do you mean the Back, Home and Search physical keys? (Left Pointing Arrow, Window with 4 Panes and Magnifying Glass)