The word "put sea" is not a commonly used term, and its spelling can be a bit confusing. Phonetically, the word can be broken down into two syllables, with the first syllable being pronounced as "pʊt" and the second syllable as "si." The letter combination "ea" in "sea" is pronounced as a long "e" sound, which is why it is spelled with an "ea" instead of just an "e." Overall, the spelling of "put sea" can be tricky to remember given its irregularity and lack of common usage.