The word "WILM" may seem odd in terms of spelling, but it can be easily explained using IPA phonetic transcription. The initial sound of the word is a voiced bilabial fricative, which is represented by /w/. The second sound is an unvoiced dental fricative, represented by /θ/. The third sound is an unvoiced velar plosive, represented by /k/. Finally, the word ends with an unvoiced bilabial plosive, represented by /p/. Putting these sounds together, the word "WILM" is spelled as /wɪlθkəp/.