The word "summings" is spelled with two M's, despite only having one M sound. This is because of a linguistic rule called "gemination," which requires that consonants in certain positions double up. In this case, the M is doubled up because it comes after a short vowel sound. The IPA phonetic transcription of summings is /ˈsʌmɪŋz/, with the double M indicated by two vertical lines under the M symbol. This spelling can be tricky for English language learners, but following gemination rules is essential for proper pronunciation.