Question

what is sign in or sign out ?

Answer 1

Sign in means log in

and

sign out means log out.

Answer 2

Answer:

now let us see what all we have to do for registering in a new website:

first we have to sign up by filling all our details and then your website will be registered.

so for registering we sign up.

what is sign in and sign out:

sign in is reffered as log in and sign out is reffered to as log out.

after you have registered,

you have to log in to visit that website. if you are logged in you can use that website. after you have logged in and finished your work you can log out if you wish. if you do not log out then the account will be logged in.