Step 1: Concept
Substitute each digit with its corresponding letter based on the provided code table.
Step 2: Meaning
Using the code: 7=W, 2=L, 1=M, 5=S, 3=I, 9=N, 8=D, 6=J, 4=B.
Step 3: Analysis
Decoding 184632: 1=M, 8=D, 4=B, 6=J, 3=I, 2=L.
Step 4: Conclusion
Combining the letters gives the word: MDJBIL.
Final Answer: (B)