Student or Learner
/ˈben.ɪ.fɪt/ (from Cambridge dictionary).
Do the dots show how to break the word down into parts while saying it? They don’t show where to apply an accent, do they?
In the word benefit, “i” is unstressed according to this dictionary, and it’s not an “l” ended word like travel. Why does the dictionary show the past participle as benefited, and not benefitted then? It indicates “t”or “tt” in brackets, though, when used as a verb.
According to the Merriam-Webster dictionary, for a change, “i” is stressed: \ˈbe-nə-ˌfit\ or isn’t it?
What should I make of it?
In your first entry, the dots mark the syllables. The initial apostrophe marks the major stress/accent.
Both benefited and benefitted are accepted by major dictionaries. In AmE, in a multi-syllable word, the tendency is to not double the the final consonant when adding a suffix unless the the major stress is on the final syllable.
Pope of the Dictionary.com Forum