In a nutshell: deactivating your Facebook account is temporary, deleting your account is permanent.
What’s the difference?
Deactivating your Facebook account gives you the adaptability to leave and return at whatever point you need. On the off chance that you deactivate your record individuals won’t have the option to see your Facebook Timeline, yet messages you have sent will in any case be noticeable to the individuals who got them. Purposes behind deactivating your record may incorporate voyaging, contemplating, recovering, or whenever you would prefer not to invest energy on Facebook and don’t need others to post things on your divider or label you in posts while you are no more. You can deactivate your record at whatever point you need, however long you need. At the point when you are prepared to restore, your companions and photographs will be there sitting tight for you.
In the event that you forever erase your record, you will always be unable to recover admittance to your Facebook account. Facebook cautions that it might take as long as 90 days to erase everything you’ve posted, similar to your photographs, notices, or other information put away in reinforcement frameworks. While it is being erased, notwithstanding, your data is as yet unavailable to others utilizing Facebook.
How to deactivate your Facebook account
1) Click the account menu at the top right of any Facebook page
2) Select Settings, then Security in the left-hand column
3) Choose Deactivate your account then follow the steps to confirm
How to delete your Facebook account
To permanently delete your Facebook account, click the Delete button on this page.