How do I sign out of Google Accounts?

What are you trying to exactly? It sounds like maybe you are trying to share paid content or apps which is probably frowned upon here for obvious reasons. (although I'm fairly new so maybe a mod can chime in on this?)
No it's allowed and know I would like her to sign out but she refuses so I was just wondering if I could do it off of my phone
 
Hi, I've lost my samsung note 2 phone. And my bank account is connected to playstore where I use to purchase the apps. How will I disconnect it?? I'm afraid the person who has my phone will use my account and do unnecessary purchase online.
 
just what Unicorn Rancher said. you don't have to remove your card just change the password.

this is what i like about Google 2 step authentication. To login to Android you need to use application specific password.
and for some reason if you need to revoke the permission you go to Google website and revoke the permission created for that device.
 
Just found 2 easy ways ..may not work for all. Have a Galaxy S running 4.2.2. I use one acct for home and one for work. Disabled sync then used Firefox. Went back to other browser and found an option to choose desktop version. Did that and was able to sign out. Both worked for me. No big hoopla or factory/clearing/uninstalls/reinstalls. Old thread but hope it helps someone.