Keyword Analysis & Research: what does cb stand for in text

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does cb stand for in text	0.3	0.4	5532	69	30
what	1.62	0.4	9738	70	4
does	0.52	0.4	583	65	4
cb	1.6	0.2	7750	83	2
stand	1.23	0.9	9187	79	5
for	1.97	0.9	405	32	3
in	1.85	0.8	7484	25	2
text	0.57	0.4	1687	30	4

Keyword	CPC	PCC	Volume	Score
what does cb stand for in text	1.65	0.5	3388	62