grisly / grizzly 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. 👇
grisly: NA
grizzly: (noun) powerful brownish-yellow bear of the uplands of western North America.
grisly: g·r·IH·z·l·iy
grizzly: g·r·IH·z·l·iy
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)