Homophones for emission, immission

emission / immission [ɪˈmɪʃən]

emission – n. – (often followed by of) the process or an act of emitting; 2. a thing emitted, as exhaust, radiation, fluid, etc.

immission – n. – 1. Archaic an act of sending or letting in, injection, admission, introduction; 2. commixture