Wikipedia:Pronunciation respelling key

Syllables are separated by hyphens ("-") in the display. The stress on a syllable is indicated by bold small capital letters in the display. For example, the word "pronunciation" (IPA: /prəˌnʌn.siˈeɪ.ʃən/) is respelled prə-nun-see-ay-shən. Primary and secondary stress are not distinguished, as the difference is automatic.

When a certain sound is pronounced by some speakers but not by others, the sound is put inside parentheses (round brackets). For example, the word "fuchsia" (IPA: /ˈfjuːʃ(i)ə/) could be respelled few-sh(ee-)ə, which can be pronounced either FEW-shee-ə or FEW-shə.

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Wikipedia