0 a letter in which you write to a company, explaining how your skills, experience, etc. could help the company, and asking them to give you a job: --
Send a job proposal with your résumé, suggesting how you would improve company operations.
1 a letter that a company sends to suitable people when it has a job that needs to be filled: --
2 a description of the exact work, materials, etc. involved in a particular piece of work: --