Keyword Analysis & Research: what does t minus 4 days mean

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does t minus 4 days mean	0.63	0.5	7979	89	29
what	0.6	0.1	5496	100	4
does	0.36	0.7	7782	12	4
t	1.79	0.3	8752	31	1
minus	1.02	0.4	7918	68	5
4	0.51	0.4	8029	78	1
days	0.21	0.8	9545	65	4
mean	0.73	0.4	9457	3	4

Keyword	CPC	PCC	Volume	Score
what does t minus 4 days mean	1.09	0.8	5976	74