missed / mist are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
missed: (verb) fail to perceive or to catch with the senses or the mind. (verb) feel or suffer from the lack of. (verb) fail to attend an event or activity. (verb) fail to reach or get to. (verb) be without. (verb) fail to reach. (verb) be absent. (verb) fail to experience.
mist: (noun) a thin fog with condensation near the ground. (verb) become covered with mist. (verb) spray finely or cover with mist.
missed: m·IH·s·t
mist: m·IH·s·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)