peak / peek / peke / pique 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. 👇
peak: (noun) the top or extreme point of something (usually a mountain or hill).
peek: (noun) a secret look.
peke: NA
pique: (noun) tightly woven fabric with raised cords. (noun) a sudden outburst of anger. (verb) cause to feel resentment or indignation.
peak: p·IY·k
peek: p·IY·k
peke: NA
pique: p·IY·k
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)