nonalphanumeric
Neither letters nor digits
Nonalphanumeric describes characters that are neither letters nor numbers—punctuation marks, symbols, and special characters like @, #, $, %, and &.
The term appears most often in computing and password requirements: Your password must contain at least one nonalphanumeric character.
Punctuation marking pauses
- periodPunctuation ending sentences
- semicolonPunctuation joining related clauses
- colonLarge intestine section
- apostropheMark showing ownership
hyphen · dash · parenthesis · bracket · brace · ellipsis · slash · ampersand
Boundary-marking character
- whitespaceUnprintable gap characters
- tabProjection for gripping
- backslashLeftward-slanting diagonal character
- regexText-matching notation
operator · wildcard · newline · separator · token · parser · sanitization
Sixteen-digit numeral system
comma
Punctuation marking pauses
- periodPunctuation ending sentences
- semicolonPunctuation joining related clauses
- colonLarge intestine section
apostrophe · hyphen · dash · parenthesis · bracket · brace · ellipsis · slash · ampersand · asterisk
delimiter
Boundary-marking character
- whitespaceUnprintable gap characters
- tabProjection for gripping
- backslashLeftward-slanting diagonal character
regex · operator · wildcard · newline · separator · token · parser · sanitization
hexadecimal
Sixteen-digit numeral system
operator
One who works machinery
nonalphanumericalphanumeric
Letters and digits combined
letter · alphabetic · digit · numeric · numeral
non, alpha, numeric, alphanumeric, alphabet, alphabetic, alphabetical, alphabetically, number