The spelling of the word "BETALCR" can be explained using the International Phonetic Alphabet (IPA). The first letter "B" is pronounced as /b/, followed by "E" pronounced as /ɛ/, "T" as /t/, "A" as /æ/, "L" as /l/, "C" as /k/, and "R" as /r/. Therefore, BETALCR should be pronounced as /bɛtælkɹ/. Proper spelling is important as it helps in proper pronunciation and effective communication of words.