The phrase "rushes up on" can be spelled as [rʌʃɪz ʌp ɑn]. The first word "rushes" is spelled with a sh sound, as in "shoe," followed by a long u sound, as in "rule," and an es sound, as in "ches." The second word "up" is spelled with a short u sound, as in "cup" and a p sound, as in "pig." Finally, the word "on" is spelled with an ah sound, as in "father," and an n sound, as in "net."