Keyword Analysis & Research: what does the plus symbol mean

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does the plus symbol mean	0.02	0.7	8605	27	30
what	0.9	0.3	5219	47	4
does	1.24	0.4	7573	100	4
the	0.54	0.7	987	92	3
plus	0.91	0.8	4342	10	4
symbol	1.37	0.6	9755	35	6
mean	1.7	0.3	8549	22	4

Keyword	CPC	PCC	Volume	Score
what does the plus symbol mean	1.83	0.1	2705	59