Ampersand
and symbol &
Octothorpe
hashtag symbol #
Homographs
words that are spelt the same but have different meanings
Orthography
The study of spelling
The rules and conventions of written language
Typography
The different types of fonts and handwriting styles to appeal to different readers
Semiotics
The study of signs and symbols
Interrobang
?!
logogram
any symbols
e.g x for a kiss
:) for a smiley face
variant orthography
deliberate misspelling