Shirer is a relatively uncommon word that means someone who is hired to perform a particular task. Some synonyms for shirer include contractor, employee, worker, wage earner, laborer, and hireling. A contractor is someone who is hired to perform a specific job or project and is typically self-employed. An employee is a person who is hired by a company or organization and is paid a salary or wage. A worker is a general term that refers to someone who performs manual or physical labor. Similarly, a laborer is someone who works with their hands. A wage earner refers to someone who is paid a wage for their work, while a hireling is someone who is hired to perform a menial or unskilled task.