This email contains ghost characters.

I can't read this email because the characters are corrupted.

Please write this word in lowercase.

She uses a lot of emoticons in her messages.

In ancient Egyptian civilization, hieroglyphs were commonly used.

He wrote a message using ideograms.

Arabic is often written in abjad.

The Arabic alphabet is used in many countries in the Middle East.

This sentence is written entirely in capital letters.

This sentence is written in capital letters.