The spelling of the word "tibba" can be explained using IPA phonetic transcription. In IPA, "tibba" is transcribed as /tɪbə/. The first syllable is pronounced with a short "i" sound, represented by /ɪ/. The second syllable is pronounced with the weak or neutral vowel sound, /ə/. This results in the schwa sound that we often hear in unstressed syllables. The spelling of "tibba" represents these sounds correctly with the letters "t-i-b-b-a". Understanding IPA helps to accurately transcribe and pronounce words in any language.