reservecharacterset

noun
UK /rɪˈzɜːv ˈkærəktə sɛt/
US /rɪˈzɜːrv ˈkærəktər sɛt/

A special group of letters and symbols kept aside for a computer to use in a certain way.

The programmer checked the reservecharacterset before writing the password rules.


OTHER MEANINGS

2. A collection of characters that cannot be used for ordinary text because they have a special job.

The reservecharacterset includes symbols like brackets and slashes.

3. A stored list of letters and signs saved for later use in a system.

The old printer used its own reservecharacterset for foreign letters.

4. A group of signs kept apart so they do not clash with normal typing.

Email systems often treat the reservecharacterset as unsafe for names.