receipt /rɪˈsiːt/ /rɪˈsiːt/
reception /rɪˈsepʃn/ /rɪˈsɛpʃən/
receiving
perception /pərˈsɛpʃən/ /pəˈsɛpʃən/
comprehension /ˌkɑmpriˈhɛnʃən/ /ˌkɒmprɪˈhɛnʃən/