<a class='_ac _lb' lightbox='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2184896.0_r8b5yq9wx7hx.PNG '><img class='_ac _di img-fluid' style='width:527px; height:inherit; background: inherit;' data-delaysrc='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2184896.0_r8b5yq9wx7hx.PNG' src='https://uat-englishforward-forums-backend.s3.us-west-2.amazonaws.com/2184896.0_r8b5yq9wx7hx.PNG' /></a><br/>What does 'by himself' mean?