tenuis / tenuous 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. 👇
tenuis: NA
tenuous: (adjective) having thin consistency. (adjective) very thin in gauge or diameter.
tenuis: NA
tenuous: t·EH·n·y·ah·w·ah·s
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)