Some signs (punctuation, math...)

.  dot; period

, comma

‘ apostrophe

" " speech marks or inverted commas or quotation marks

& ampersand

+ plus sign

- minus sign

-> arrow

© copyright sign

? question mark

! admiration mark

# number symbol or hash symbol or hash sign

( ) brackets                      PARENTHESIS SINGULAR;  PARENTHESES: PLURAL

( open brackets

) close brackets or closed brackets

_ underscore

: colon

; semicolon

/ forward slash

\ backslash

= EQUALS

3X3=            3 times 3 equals

DIVISION:  9 DIVIDED BY 3 EQUALS 3