& is called the ampersand.
A multiplication sign is commonly called an "asterisk" symbol (*).
It is called an "ampersand."
A person who does sign language is called a "sign language interpreter" if they are interpreting between spoken language and sign language, or a "sign language user" if they communicate primarily through sign language.
A person who does sign language is called a "sign language interpreter" or a "signer."
Anyone can learn sign language, but sign language is mostly associated with deaf and hard of hearing people which is their native language. (Although quite a few don't know sign language and learned language via oralism method.)
The infinity sign is called the lemniscate.
It is called the minus sign. - .
it's called the radical sign
The infinity sign ∞ is sometimes called the lemniscate.
This can be called * A Plus sign * An Adding sign
A multiplication sign is commonly called an "asterisk" symbol (*).
a sign up or a sign in sheet/box
& is called the ampersand.
It is called an "ampersand."
equal sign (=)
Sign
That is called an expression.