Keyword Analysis & Research: what is the use of def keyword in python

Keyword Analysis

Keyword	CPC	PCC	Volume	Score	Length of keyword
what is the use of def keyword in python	1.31	0.1	9350	35	40
what	1.74	0.8	2165	13	4
is	0.84	0.1	8548	22	2
the	0.02	0.4	6125	56	3
use	0.81	0.6	6477	31	3
of	1.73	0.2	9952	73	2
def	0.11	0.6	4655	47	3
keyword	0.64	0.3	2686	41	7
in	1.12	0.4	3182	48	2
python	0.06	1	5137	85	6

Keyword	CPC	PCC	Volume	Score
what is the use of def keyword in python	0.56	0.6	7298	18