The spelling of the word "LEADE" may seem unusual, but it actually follows the rules of English phonetics. The IPA phonetic transcription for the word is /li:d/. The letter "a" is pronounced like "ay" in "day", and the silent "e" at the end extends the pronunciation of the preceding vowel. Therefore, "ea" becomes "ee" and "d" is pronounced normally. This type of spelling is commonly seen in words like "behave" and "chase". With a little knowledge of phonetics, the spelling of "LEADE" becomes easy to understand.