Keyword Analysis & Research: what does the ie mean

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does the ie mean	0.98	0.9	4704	40	21
what	0.26	1	8718	18	4
does	1.64	0.9	4906	90	4
the	0.16	0.9	5132	54	3
ie	0.21	0.7	3706	61	2
mean	1.33	1	3791	54	4

Keyword	CPC	PCC	Volume	Score
what does the ie mean	0.32	0.8	6394	11