To SHOUT AT SOMEONE IN AN email MESSAGE, you type your letter in CAPITALS, yes, in CAPITAL LETTERS. That really EMPHASISES THE WORDS, because they ARE BIGGER. You can also use exclamation marks! You can even use lots of exclamation marks!!
typing in all caps
caps and underlining
to shout out loudly at someone
Typing a word entirely in capital letters to emphasize a word when writing a message in an IM application or email. For example if you want to yell at someone over an email, then you write the whole message in capital letters and with exclamation marks.
yell
Shout
Yell and shout.
to yell or shout
Sleep.
shout and scream.
loudly
yell
A four letter word meaning to shout would be yell.As in "he let out a mighty yell".