Overriding specific language/translations in WordPress

functions.php

<?php

add_filter( 'gettext', 'yanco_filter_gettext', 10, 3 );
function yanco_filter_gettext( $translated, $original, $domain ) {

    // Use the text string exactly as it is in the translation file
    if ( $translated == '' ) {
        $translated = '';
    }

    return $translated;
}

add_filter( 'gettext_with_context', 'yanco_filter_gettext_with_context', 10, 4 );
function yanco_filter_gettext_with_context( $translated, $original, $context, $domain ) {

    // Use the text string exactly as it is in the translation file
    if ( $translated == '' ) {
        $translated = '';
    }


    return $translated;
}