mainstay Synonyms

backbone keystone linchpin pillar anchor lynchpin hired help cornerstone hired hand right-hand woman tower of strength chief support central component central keystone central sources living room staple linch pin like center key player inner most part heart of the work heart of the system go-to player everyday player circular center aide upholder supporter bulwark bastion base backer abetter atlas apprentice aider buttress centrepiece collaborator support sinew prop henchman helper foundation confederate colleague accomplice