The spelling of the word "Alldrich" can be explained by breaking down its phonetic transcription. The first syllable "al" is pronounced as /æl/, which sounds like the "a" in "cat." The second syllable "ld" is pronounced as /ld/, which is a combination of the "l" and "d" sounds. The final syllable "rich" is pronounced as /rɪtʃ/, which sounds like "rich" but with an "ee" sound instead of "i." Therefore, "Alldrich" is spelled as it is pronounced: /æl-ld-rɪtʃ/.