How to translate text using language overrides in Joomla?

You have to override language for changing the contact form placeholder & button text. Go to Extensions > Language > Overrides > select language from filter > click new and paste below text in the Language constant field and write text which you need to showing your site fron-end in the text field. Please use below language constant for the xpert contact. NAME_PLACEHOLDER EMAIL_PLACEHOLDER SUBJECT_PLACEHOLDER MESSAGE_PLACEHOLDER SEND