Are you asking how to come up with a password for
some kind of online/computer account?
You want to choose a password that's easy
for you to remember but hard for someone
else to guess.
Do NOT use regular words, because these can
be guessed using a "dictionary attack".
Your password will be better if you can
use mixed case, maybe some digits, and
maybe even a special character or two (@!$%&).
Personally, I like to use mnemonics, like using
a phrase. For example, maybe I would choose:
"My wife is a certified public accountant"
I might abbreviate that to:
mwiacpa
but then replace the first "a" with an "@"
and maybe capitalize the the "p":
mwi@cPa
I find that fairly easy to remember, but
I don't *think* anyone would be likely to
guess it.