- A horse for riding or driving; a nag; a pony.
- A horse or pony kept for hire.
- A carriage kept for hire; a hack; a hackney coach.
- A hired drudge; a hireling; a prostitute.
- Let out for hire; devoted to common use; hence, much used; trite; mean; as, hackney coaches; hackney authors.
- To devote to common or frequent use, as a horse or carriage; to wear out in common service; to make trite or commonplace; as, a hackneyed metaphor or quotation.
- To carry in a hackney coach.