blair / blare 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. 👇
blair: (noun) British statesman who became prime minister in 1997 (born in 1953).
blare: (noun) a loud harsh or strident noise.
blair: b·l·EH·r
blare: b·l·EH·r
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)