0 a list of people or things that are considered by a particular authority or group to be acceptable and that should be trusted
1 to put the name of someone or something on a whitelist:
Optionally, some automated whitelisting systems can review records of past email communications which were previously stored within an email server's (or email client's) archives for inclusion in the whitelist.
The safe chat feature was removed and was replaced by a system based on a whitelist for users under 13 years old and on a blacklist for other users.
Could use blacklist/whitelist technology.
A more sophisticated server software could spare the nofollow for links submitted by trusted users like those registered for a long time, on a whitelist, or with a high karma.
Another point of view is that doping could be legalized to some extent using a drug whitelist and medical counseling, such that medical safety is ensured, with all usage published.
Sanitization is typically performed by using either a whitelist or a blacklist approach.
Without the whitelist addition, the device will not work.
When enabled, the system checks web pages against a whitelist of sites known not to be potential security risks.