ascent / assent 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. 👇
ascent: (noun) an upward slope or grade (as in a road).
assent: (noun) agreement with a statement or proposal to do something. (verb) to agree or express agreement.
ascent: ah·s·EH·n·t
assent: ah·s·EH·n·t
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)