Accelerator
Typically, the a programme that offers mentorship, brand/marketing crash course and some capital for startups in exchange for equity. Offering varies by accelerator but is usually suited to early stage startups with inexperienced founding teams.
Incubator
Similar to an accelerator but focussed primarily on innovation, “incubating” an idea into a viable business model. As with an accelerator programme, also offers mentorship and capital in exchange for equity.