shears / sheers 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. 👇
shears: (noun) large scissors with strong blades.
sheers: (verb) cause to sheer.
shears: sh·IY·r·z
sheers: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)