jab / jabb 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. 👇
jab: (noun) a sharp hand gesture (resembling a blow). (noun) a quick short straight punch. (verb) poke or thrust abruptly. (verb) strike or punch with quick and short blows.
jabb: NA
jab: jh·AE·b
jabb: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)