The spelling of the word "lays course" can be explained using IPA phonetic transcription. The first word "lays" is pronounced as /leɪz/ and means "puts in a horizontal position." The second word "course" is pronounced as /kɔːs/ and refers to a direction or route taken. Together, they form a phrase that can mean "puts something in a particular path or direction." The spelling of each word is based on the English language phonetics and can be easily understood using the International Phonetic Alphabet.