How Do You Spell LEASK?
Pronunciation: [lˈiːsk] (IPA) 
The word "leask" might seem tricky to spell at first glance, but it can be accurately written as /liːsk/. The two most important sounds to focus on are the long "ee" vowel sound and the "sk" consonant cluster. The "ea" digraph in the word does not make its usual sound in English, and instead functions simply as a way to indicate the long "ee" sound. So, with this IPA transcription, you can confidently spell "leask" in any written material.
