The pronunciation of polysemy is:
/pəˈlɪsɪmi/ or /ˈpɒlɪˌsiːmi/
Here’s a breakdown of the pronunciation:
- pol – as in “pol” from “politics”
- y – pronounced like “i” in “sit”
- semy – the “semy” part is pronounced like “see-mee”
The stress is placed on the second syllable “liss” or the first syllable depending on the pronunciation variant. Both versions are widely accepted.