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

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what does hh stand for in text	0.91	0.6	1289	68	30
what	1.81	0.4	3884	27	4
does	0.97	0.6	8558	58	4
hh	1.43	0.8	6723	21	2
stand	0.39	0.6	857	87	5
for	0.31	0.5	9291	66	3
in	1.43	0.2	2385	16	2
text	0.92	0.1	3666	42	4

Keyword	CPC	PCC	Volume	Score
what does hh stand for in text	1.32	0.7	5435	86