Peak or Peek?
Exemple : ‘’We felt a real sense of acheivement when we reached the peak of the mountain.’’
The words "peak" and "peek" are homonyms and thus are often confused. "Peak" is a noun denoting the highest point of something and is most commonly used in relation to mountains.
Exemple : ‘’Don't cheat and peek befoe you've counted to ten!’’
"Peek" is a verb meaning to look quickly at something with the aim of not being seen.