The spelling of the word "TIBECR" may seem unusual, but it can be explained using the International Phonetic Alphabet (IPA). The first two letters, "TI", represent the sound /tɪ/ as in "tip". The next two letters, "BE", represent the sound /bɛ/ as in "bed". The letter "C" represents the sound /k/ as in "cat". Finally, the letter "R" represents the sound /r/ as in "red". Therefore, the correct pronunciation of "TIBECR" is /tɪbɛkɑr/.