The word "Curtailstep" is a unique spelling of two English words "curtail" and "step" combined together. The IPA phonetic transcription for this word is /kəːtɪlstɛp/. The first syllable "cur" is pronounced as /kəː/ and remaining letters "tai" are pronounced as /tɪl/. The second word "step" is pronounced as /stɛp/. The combination of these two words creates a new word, which means cutting down or reducing something to a certain level or amount.