kneading / needing 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. 👇
kneading: (verb) make uniform.
needing: (verb) have or feel a need for.
kneading: n·IY·d·ih·ng
needing: n·IY·d·ih·ng
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)