The word "commemoratings" is spelled with two 'm's and two 't's after the second 'm'. This is because there are two syllables between the first and second 'm', and the stress falls on the third syllable (kəˈmɛm.əˌreɪ.tɪŋz). When adding the suffix '-ing', only one 'm' is dropped to avoid having three 'm's in a row. This word is used to describe the act of commemorating or remembering something, such as a historical event or a person.